Examsbook | Hand picked material and question banks

प्र: In how many ways the letters of the word OLIVER be arranged so that the vowels in the word always occur in the dictionary order as we move from left to right ? 1716 0

उत्तर : 4. "120"
व्याख्या :
Answer: D) 120 Explanation: In given word OLIVER there are 3 vowels E, I & O. These can be arranged in only one way as dictionary order E, I & O. There are 6 letters in thegiven word. First arrange 3 vowels. This can be done in 6C3 ways and that too in only one way.(dictionary order E, I & O) Remaining 3 letters can be placed in 3 places = 3! ways Total number of possible ways of arranging letters of OLIVER = 3! x C36 ways = 6x5x4 = 120 ways.

प्र: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1715 0

उत्तर : 1. "35"
व्याख्या :
Answer: A) 35 Explanation: Here the given number series is 0, 3, 8, 15, 24, ? The next number in the given series can be found such a way that the number series follows a pattern, 22 - 4 = 032 - 6 = 342 - 8 = 852 - 10 = 1562 - 12 = 2472 - 14 = 35Hence, the next number in the iven series is 35.

प्र: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 1715 0

उत्तर : 4. "36 years"
व्याख्या :
Answer: D) 36 years Explanation: Let present ages of Sushanth = w, Krish = x, Rishi = y and Rohit = z , thenw + x + y = 43 x 3 = 129 ---(i) andw + y + z = 49 x 3 = 147 ---(ii)Subtracting (i) from (ii), (w+y+z) - (w+x+y) = 147 - 129 , z - x = 18 ---(iii)Given Rohit's age=z=54, so from (iii), x = 54 - 18 = 36.Therefore, Krish age is 36 years.

प्र: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1714 0

उत्तर : 2. "63"
व्याख्या :
Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e, 2 × 3 = 6 3 × 5 = 15 5 × 7 = 35 7 × 11 = 77 11 × 13 = 143 13 × 17 = 221 17 × 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.

प्र: Prashanth sold a album for $ 735 and made a profit of 22.5% . The cost price of the album went up by $120 and so Prashanth increased the selling price by $120. What is his profit % now ? 1713 0

उत्तर : 2. "18.75 %"
व्याख्या :
Answer: B) 18.75 % Explanation: Prashanth sold a album for $ 735 and made a profit of 22.5% .CP = 735 x 100/122.5 = Rs. 600New CP = 600 + 120 = Rs. 720New SP = 735 + 120 = Rs. 855. Profit = Rs. 135. profit % = 100 x 135/720 = 18.75%.

प्र: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1712 0

उत्तर : 2. "Rs. 4826"
व्याख्या :
Answer: B) Rs. 4826 Explanation: We know the formula for calculating The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time Here P = 5000, r1 = 10, r2 = 20 Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625 C = Rs. 4826.

प्र: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 1712 0

उत्तर : 4. "-19"
व्याख्या :
Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.

प्र: What will be added to the unit digits of the number 86236 so that number will be divisible by 9 ? 1712 0

उत्तर : 2. "2"
व्याख्या :
Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

प्र: In how many ways the letters of the word OLIVER be arranged so that the vowels in the word always occur in the dictionary order as we move from left to right ? 1716 0

प्र: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1715 0

प्र: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 1715 0

प्र: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1714 0

प्र: Prashanth sold a album for $ 735 and made a profit of 22.5% . The cost price of the album went up by $120 and so Prashanth increased the selling price by $120. What is his profit % now ? 1713 0

उत्तर : 2. "18.75 %"
व्याख्या :
Answer: B) 18.75 % Explanation: Prashanth sold a album for $ 735 and made a profit of 22.5% .CP = 735 x 100/122.5 = Rs. 600New CP = 600 + 120 = Rs. 720New SP = 735 + 120 = Rs. 855. Profit = Rs. 135. profit % = 100 x 135/720 = 18.75%.

प्र: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1712 0

प्र: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 1712 0

उत्तर : 4. "-19"
व्याख्या :
Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.

प्र: What will be added to the unit digits of the number 86236 so that number will be divisible by 9 ? 1712 0

उत्तर : 2. "2"
व्याख्या :
Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

प्र: In how many ways the letters of the word OLIVER be arranged so that the vowels in the word always occur in the dictionary order as we move from left to right ? 1716 05b5cc6cae4d2b4197774e045

प्र: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1715 05b5cc6a7e4d2b4197774ce13

प्र: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 1715 05b5cc73de4d2b4197774f948

प्र: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1714 05b5cc6c8e4d2b4197774df41

प्र: Prashanth sold a album for $ 735 and made a profit of 22.5% . The cost price of the album went up by $120 and so Prashanth increased the selling price by $120. What is his profit % now ? 1713 05b5cc715e4d2b4197774f431

उत्तर : 2. "18.75 %" व्याख्या :Answer: B) 18.75 % Explanation: Prashanth sold a album for $ 735 and made a profit of 22.5% .CP = 735 x 100/122.5 = Rs. 600New CP = 600 + 120 = Rs. 720New SP = 735 + 120 = Rs. 855. Profit = Rs. 135. profit % = 100 x 135/720 = 18.75%.

प्र: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1712 05b5cc6abe4d2b4197774cfe0

प्र: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 1712 05b5cc6c0e4d2b4197774dacb

उत्तर : 4. "-19" व्याख्या :Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.

प्र: What will be added to the unit digits of the number 86236 so that number will be divisible by 9 ? 1712 05b5cc6cae4d2b4197774dfcf

उत्तर : 2. "2" व्याख्या :Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

प्र: In how many ways the letters of the word OLIVER be arranged so that the vowels in the word always occur in the dictionary order as we move from left to right ? 1716 0

प्र: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1715 0

प्र: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 1715 0

प्र: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1714 0

प्र: Prashanth sold a album for $ 735 and made a profit of 22.5% . The cost price of the album went up by $120 and so Prashanth increased the selling price by $120. What is his profit % now ? 1713 0

उत्तर : 2. "18.75 %"
व्याख्या :
Answer: B) 18.75 % Explanation: Prashanth sold a album for $ 735 and made a profit of 22.5% .CP = 735 x 100/122.5 = Rs. 600New CP = 600 + 120 = Rs. 720New SP = 735 + 120 = Rs. 855. Profit = Rs. 135. profit % = 100 x 135/720 = 18.75%.

प्र: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1712 0

प्र: If the HCF of 210 and 55 is expressible in the form of 210 x 5 + 55P, then value of P = ? 1712 0

उत्तर : 4. "-19"
व्याख्या :
Answer: D) -19 Explanation: HCF of 210 and 55 is 5 Now, 210x5 + 55P = 5 => 1050 + 55P = 5 => 55P = -1045 => P = -1045/55 => P = -19.

प्र: What will be added to the unit digits of the number 86236 so that number will be divisible by 9 ? 1712 0

उत्तर : 2. "2"
व्याख्या :
Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.