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प्र: Which of the following is a false statement? 1166 0

उत्तर : 2. "Bond order is proportional to the bond length"
व्याख्या :
Answer: B) Bond order is proportional to the bond length Explanation: Bond order is proportional to the bond length is a False statement since Bond order is inversely proportional to the bond length.

प्र: What is the capital of the country Turkmenistan ? 1165 0

उत्तर : 2. "Ashgabat"
व्याख्या :
Answer: B) Ashgabat Explanation:

प्र: What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 1165 0

उत्तर : 3. "7 days"
व्याख्या :
Answer: C) 7 days Explanation:

प्र: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1164 0

उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

प्र: O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ? 1162 0

उत्तर : 4. "45/4"
व्याख्या :
Answer: D) 45/4 Explanation: As clear from the figure itself, triangle OQX and triangle O'PX are similar. So, OQ/O'P = OX/O'X => OX = (7/9)xO'X And since, OX + O'X = 20 => (7/9)xO'X + O'X = 20 => O'X = 45/4

प्र: How can we get 24 as an answer by using 6, 11, 3 and 9? 1161 0

उत्तर :
व्याख्या :
This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24. 2. [(9–6) x (11–3)] = 3 x 8 = 24.

प्र: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1160 0

उत्तर : 3. "9"
व्याख्या :
Answer: C) 9 Explanation: The mother completes the job in x hours.So, the daughter will take 2x hours to complete the same job. In an hour, the mother will complete 1/x of the total job.In an hour, the daughter will complete 1/2x of the total job. So, if the mother and daughter work together, in an hour they will complete 1/x + 1/2x of the job.i.e., in an hour they will complete 3/2x of the job. The question states that they complete the entire task in 6 hours if they work together.i.e., they complete 1/6 th of the task in an hour. Equating the two information, we get 3/2x = 1/6By solving for x, we get 2x = 18 or x = 9. The mother takes 9 hours to complete the job.

प्र: A simple interest earned on certain amount is triple the money when invested for 16 years.what is the interest rate offered ? 1159 0

प्र: Which of the following is a false statement? 1166 05b5cc6a6e4d2b4197774cd1d

उत्तर : 2. "Bond order is proportional to the bond length" व्याख्या :Answer: B) Bond order is proportional to the bond length Explanation: Bond order is proportional to the bond length is a False statement since Bond order is inversely proportional to the bond length.

प्र: What is the capital of the country Turkmenistan ? 1165 05b5cc6cbe4d2b4197774e0d1

उत्तर : 2. "Ashgabat" व्याख्या :Answer: B) Ashgabat Explanation:

प्र: What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 1165 05b5cc6cce4d2b4197774e13e

उत्तर : 3. "7 days" व्याख्या :Answer: C) 7 days Explanation:

प्र: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1164 05b5cc741e4d2b4197774f9b3

उत्तर : 3. "3" व्याख्या :Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

प्र: O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ? 1162 05b5cc701e4d2b4197774f1a8

उत्तर : 4. "45/4" व्याख्या :Answer: D) 45/4 Explanation: As clear from the figure itself, triangle OQX and triangle O'PX are similar. So, OQ/O'P = OX/O'X => OX = (7/9)xO'X And since, OX + O'X = 20 => (7/9)xO'X + O'X = 20 => O'X = 45/4

प्र: How can we get 24 as an answer by using 6, 11, 3 and 9? 1161 05b5cc6a9e4d2b4197774cf1e

उत्तर : व्याख्या :This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24. 2. [(9–6) x (11–3)] = 3 x 8 = 24.

प्र: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1160 05b5cc6cfe4d2b4197774e2fe

प्र: A simple interest earned on certain amount is triple the money when invested for 16 years.what is the interest rate offered ? 1159 05b5cc745e4d2b4197774fa13

उत्तर : 4. "18.75 %" व्याख्या :Answer: D) 18.75 % Explanation: Given,S.I = 3 Principal Amount=> 3A = A x 16 x R/100By solving, we get => R = 18.75%

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प्र: Which of the following is a false statement? 1166 0

उत्तर : 2. "Bond order is proportional to the bond length"
व्याख्या :
Answer: B) Bond order is proportional to the bond length Explanation: Bond order is proportional to the bond length is a False statement since Bond order is inversely proportional to the bond length.

प्र: What is the capital of the country Turkmenistan ? 1165 0

उत्तर : 2. "Ashgabat"
व्याख्या :
Answer: B) Ashgabat Explanation:

प्र: What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 1165 0

उत्तर : 3. "7 days"
व्याख्या :
Answer: C) 7 days Explanation:

प्र: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1164 0

उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

प्र: O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ? 1162 0

उत्तर : 4. "45/4"
व्याख्या :
Answer: D) 45/4 Explanation: As clear from the figure itself, triangle OQX and triangle O'PX are similar. So, OQ/O'P = OX/O'X => OX = (7/9)xO'X And since, OX + O'X = 20 => (7/9)xO'X + O'X = 20 => O'X = 45/4

प्र: How can we get 24 as an answer by using 6, 11, 3 and 9? 1161 0

उत्तर :
व्याख्या :
This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24. 2. [(9–6) x (11–3)] = 3 x 8 = 24.

प्र: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1160 0

प्र: A simple interest earned on certain amount is triple the money when invested for 16 years.what is the interest rate offered ? 1159 0

उत्तर : 4. "18.75 %"
व्याख्या :
Answer: D) 18.75 % Explanation: Given,S.I = 3 Principal Amount=> 3A = A x 16 x R/100By solving, we get => R = 18.75%