Discussion
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- Question
- Out of three number, the first is twice the second and is half of the third. If the average of the three number is 56, the three number on order are?
Options- A. 48, 96, 24
- B. 48, 24, 96
- C. 96, 24,48
- D. 96, 48, 24
- Correct Answer
- 48, 24, 96
ExplanationLet the numbers be 2y, y and 4y
? Average = (2y + y + 4y)/3
? 7y/3 = 56
? y = (3 x 56) / 7 = 24
Hence , the number in order are 48, 24 and 96 - 1. ?. x 2 ? 6x = 7
?. 2y 2 + 13y + 15 = 0
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 2. If U = {a, b, c, d, e, f}, A = {a, b, c}, find (U ? A)?.
Options- A. U
- B. A
- C. ?
- D. None of these Discuss
- 3. Mukul's income is 10% more than Sunil's. How much less is Sunil's income than that of Mukul's?
Options- A. 8.09 %
- B. 9.09 %
- C. 7.09 %
- D. 7.90 % Discuss
- 4. 3, 7, 15, 39, 63, 127, 255, 511
Options- A. 7
- B. 15
- C. 39
- D. 63
- E. 127 Discuss
- 5. 19, 26, 33, 46, 59, 74, 91
Options- A. 26
- B. 33
- C. 46
- D. 59
- E. 74 Discuss
- 6. If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:
Options- A. 2
- B. 5
- C. 6
- D. 7
- E. None of these Discuss
- 7. 6, 13, 18, 25, 30, 37, 40
Options- A. 25
- B. 30
- C. 37
- D. 40 Discuss
- 8. The true discount on a certain bill due for nine months at 4 % simple interest is ?150. Find the amount of the bill.
Options- A. ?5150
- B. ?5250
- C. ?4750
- D. ?5650 Discuss
- 9. The present worth of $ 220.50 due in 2 years reckoning compound interest at 5 % is :
Options- A. $ 200
- B. $ 197.5
- C. $ 202
- D. $ 192.25 Discuss
- 10. The value of 12x2y4z3 ÷ (2xy2 × 3yz2) will be :
Options- A. 2xyz
- B. xyz
- C. 1 xyz
- D. 2 xyz Discuss
More questions
Correct Answer: 2
Explanation:
Correct Answer: ?
Explanation:
U ? A = {a, b, c, d, e, f} ? {a, b, c} = {a, b, c, d, e, f} = U
(U ? A)? = ?.
Correct Answer: 9.09 %
Explanation:
Sunil's income is less than Mukul's = [(10 / (100 + 10)] × 100 %
= ( 1000 / 110 )%
= 9.09 %
Correct Answer: 39
Explanation:
Go on multiplying 2 and adding 1 to get the next number.
So, 39 is wrong.
Correct Answer: 33
Explanation:
Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number.
So, 33 is wrong. It must be 35
Correct Answer: 7
Explanation:
Sum of digits = (4 + 8 + 1 + x + 6 + 7 + 3) = (29 + x), which must be divisible by 9.
∴ x = 7.
Correct Answer: 40
Explanation:
The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.
So, 40 is wrong.
Correct Answer: ?5150
Explanation:
Correct Answer: $ 200
Explanation:
Correct Answer: 2xyz
Explanation:
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