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प्र: The age of Manisha and Sudeshna are in the ratio of 5 : 6 respectively. After 8 years the ratio of their ages will be 7 : 8. What is the difference of their ages ? 1411 0

उत्तर : 2. "4"
व्याख्या :
Answer: B) 4 Explanation: Let the age of Manisha and Sudeshna is 5x and 6x years respectively. According to the given data, 5x+8/6x+8 = 7/8 42x + 56 = 40x + 64 x = 4 Required Difference of their ages = (6 × 4) – (5 × 4) = 4 years.

प्र: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 m x 5 m when 10% of its volume is occupied by concrete ? 1411 0

उत्तर : 1. "6000"
व्याख्या :
Answer: A) 6000 Explanation: Let 'B' be the nuber of bricks. => 10 x 4/100 x 5 x 90/100 = 25/100 x 15/100 x 8/100 x B => 10 x 20 x 90 = 15 x 2 x B => B = 6000

प्र: The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ? 1411 0

उत्तर : 4. "40"
व्याख्या :
Answer: D) 40 Explanation: Present age of Sony = 24 + 4 = 28 years After 5 years Renuka's age = 7×5 + 5 = 40 years

प्र: Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ? 1410 0

उत्तर : 2. "13500"
व्याख्या :
Answer: B) 13500 Explanation: Given in municipality election 54% votes have won by 1080 Let the total number of votes be x. 54x100 - 46x100 = 1080 8x = 108000 x = 13,500 Therefore, total number of votes = 13,500.

प्र: There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ? 1409 0

उत्तर : 4. "74"
व्याख्या :
Answer: D) 74 Explanation:

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1408 0

उत्तर : 3. "18.33 %"
व्याख्या :
Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ? 1407 0

उत्तर : 4. "180"
व्याख्या :
Answer: D) 180 Explanation: Given total number of cows = kNow, 1st son share = k/22nd son share = k/43rd son share = k/54th son share = 9 (k) + (k/4) + (k/5) + 9 = k=> k - (19k/20) = 9=> (20k-19k)/20 = 9=> k = 180.

प्र: LCD of 12 and 18 1407 0

उत्तर : 1. "36"
व्याख्या :
Answer: A) 36 Explanation: LCD is nothing but Lowest or Least Common Denominator Here LCD of 12 and 18 means LCD of two fractions with denominators 12 and 18 respectively. Therefore, LCM of 12 & 18 = 6 x 3 x 2 = 36 How to calculate LCD :: The lowest common denominator or least common denominator (LCD) is the least common multiple (LCM) of the denominators of a set of fractions.

प्र: The age of Manisha and Sudeshna are in the ratio of 5 : 6 respectively. After 8 years the ratio of their ages will be 7 : 8. What is the difference of their ages ? 1411 05b5cc6c3e4d2b4197774dc1d

उत्तर : 2. "4" व्याख्या :Answer: B) 4 Explanation: Let the age of Manisha and Sudeshna is 5x and 6x years respectively. According to the given data, 5x+8/6x+8 = 7/8 42x + 56 = 40x + 64 x = 4 Required Difference of their ages = (6 × 4) – (5 × 4) = 4 years.

प्र: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 m x 5 m when 10% of its volume is occupied by concrete ? 1411 05b5cc6eee4d2b4197774ef16

उत्तर : 1. "6000" व्याख्या :Answer: A) 6000 Explanation: Let 'B' be the nuber of bricks. => 10 x 4/100 x 5 x 90/100 = 25/100 x 15/100 x 8/100 x B => 10 x 20 x 90 = 15 x 2 x B => B = 6000

प्र: The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ? 1411 05b5cc6b5e4d2b4197774d539

उत्तर : 4. "40" व्याख्या :Answer: D) 40 Explanation: Present age of Sony = 24 + 4 = 28 years After 5 years Renuka's age = 7×5 + 5 = 40 years

प्र: Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ? 1410 05b5cc74fe4d2b4197774fb2b

उत्तर : 2. "13500" व्याख्या :Answer: B) 13500 Explanation: Given in municipality election 54% votes have won by 1080 Let the total number of votes be x. 54x100 - 46x100 = 1080 8x = 108000 x = 13,500 Therefore, total number of votes = 13,500.

प्र: There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ? 1409 05b5cc7c7e4d2b41977750db4

उत्तर : 4. "74" व्याख्या :Answer: D) 74 Explanation:

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1408 05b5cc6e2e4d2b4197774ec7f

उत्तर : 3. "18.33 %" व्याख्या :Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ? 1407 05b5cc73de4d2b4197774f92a

उत्तर : 4. "180" व्याख्या :Answer: D) 180 Explanation: Given total number of cows = kNow, 1st son share = k/22nd son share = k/43rd son share = k/54th son share = 9 (k) + (k/4) + (k/5) + 9 = k=> k - (19k/20) = 9=> (20k-19k)/20 = 9=> k = 180.

प्र: LCD of 12 and 18 1407 05b5cc6b8e4d2b4197774d66b

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प्र: The age of Manisha and Sudeshna are in the ratio of 5 : 6 respectively. After 8 years the ratio of their ages will be 7 : 8. What is the difference of their ages ? 1411 0

उत्तर : 2. "4"
व्याख्या :
Answer: B) 4 Explanation: Let the age of Manisha and Sudeshna is 5x and 6x years respectively. According to the given data, 5x+8/6x+8 = 7/8 42x + 56 = 40x + 64 x = 4 Required Difference of their ages = (6 × 4) – (5 × 4) = 4 years.

प्र: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 m x 5 m when 10% of its volume is occupied by concrete ? 1411 0

उत्तर : 1. "6000"
व्याख्या :
Answer: A) 6000 Explanation: Let 'B' be the nuber of bricks. => 10 x 4/100 x 5 x 90/100 = 25/100 x 15/100 x 8/100 x B => 10 x 20 x 90 = 15 x 2 x B => B = 6000

प्र: The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ? 1411 0

उत्तर : 4. "40"
व्याख्या :
Answer: D) 40 Explanation: Present age of Sony = 24 + 4 = 28 years After 5 years Renuka's age = 7×5 + 5 = 40 years

प्र: Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ? 1410 0

उत्तर : 2. "13500"
व्याख्या :
Answer: B) 13500 Explanation: Given in municipality election 54% votes have won by 1080 Let the total number of votes be x. 54x100 - 46x100 = 1080 8x = 108000 x = 13,500 Therefore, total number of votes = 13,500.

प्र: There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ? 1409 0

उत्तर : 4. "74"
व्याख्या :
Answer: D) 74 Explanation:

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1408 0

उत्तर : 3. "18.33 %"
व्याख्या :
Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ? 1407 0

उत्तर : 4. "180"
व्याख्या :
Answer: D) 180 Explanation: Given total number of cows = kNow, 1st son share = k/22nd son share = k/43rd son share = k/54th son share = 9 (k) + (k/4) + (k/5) + 9 = k=> k - (19k/20) = 9=> (20k-19k)/20 = 9=> k = 180.

प्र: LCD of 12 and 18 1407 0