Discussion
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- Question
- If the weight of 13 meters long rod is 23.4 kg. What is the weight of 6 meters long rod?
Options- A. 7.2 kg.
- B. 10.8 kg.
- C. 12.4 kg.
- D. 18.0 kg
- Correct Answer
- 10.8 kg.
Explanation?Weight of 13 m long rod = 23.4 kg
? Weight of 1 m long rod = 23.4 / 13 kg
? Weight of 6 m long rod = 23.4 x 6 / 13
= 10.8 kg - 1. When a 192 meters long rod is cut down into small pieces of length 3.2 meters each. Then how many pieces are available?
Options- A. 52
- B. 68
- C. 62
- D. None of these Discuss
- 2. If a/b = 4/3, Then (3a + 2b) / (3a - 2b) =?
Options- A. 6
- B. 3
- C. 5
- D. -1 Discuss
- 3. If ? 3 n =81,Then n=?
Options- A. 2
- B. 4
- C. 6
- D. 8 Discuss
- 4. If p/q =4/5, then the value of 4/7 + {(2q - p) / (2q + p)} is?
Options- A. 3 / 7
- B. 34
- C. 1
- D. 2 Discuss
- 5. What value should come in place of the question mark(?) in the following question?
√ ? / 196 = 72 / 56
Options- A. 18
- B. 14
- C. 324
- D. 212 Discuss
- 6. Cost of 1 chair is Rs. 214 and cost of one table is Rs. 937, then what is the approximate cost of 6 dozen chairs and 4 dozen table?
Options- A. Rs. 60000
- B. Rs. 58000
- C. Rs. 55000
- D. Rs. 62000 Discuss
- 7. Five dozen toys are packed in a box and 98 boxes are kept in a tempo. How many tempos can lift 29400 toys in one round?
Options- A. 4
- B. 5
- C. 7
- D. 6 Discuss
- 8. 80 /? =? / 20
Options- A. 40
- B. 400
- C. 800
- D. 1600 Discuss
- 9. Which number should replace both the asterisks in (* /21) x (*/189) = 1?
Options- A. 21
- B. 63
- C. 3969
- D. 147 Discuss
- 10. What least number must be subtracted from 13601 to get a number exactly divisible by 87?
Options- A. 49
- B. 23
- C. 29
- D. 31 Discuss
Number System problems
Search Results
Correct Answer: None of these
Explanation:
No. of pieces = Total length / Length of each piece
= 192/3.2
= 60
Correct Answer: 3
Explanation:
Dividing numerator as well as denominator by b, we get
Given Exp. = (3a + 2b) / (3a - 2b) = (3a/b + 2) / (3a/b - 2)
= [ (3 x 4) / 3 + 2 ] / [ (3 x 4)/3 - 2 ]
= (4 + 2) / (4 - 2)
= 3
Correct Answer: 8
Explanation:
? ?3n = 81
? 3n/2= 34
? n/2 = 4
? n = 8.
Correct Answer: 1
Explanation:
Given Exp. = 4 / 7 + {(2q - p) / (2q + p)}
Dividing numerator as well as denominator by q,
Exp = 4/7 + {2-p/q) / (2 + p/q)}
= 4/7 + {(2 - 4/5) / (2 + 4/5)}
= 4/7 + 6/14
= 4/7 + 3/7
=7/7
=1.
Correct Answer: 324
Explanation:
√ N / 196 = 72 / 56 =9/7
Then, N/196 = 9/7 x 9/7 = 81 / 49
So, N = (81 x 196) / 49 = 324.
Correct Answer: Rs. 60000
Explanation:
? Cost of 6 dozen chairs = 6 x 12 x214 = Rs. 15408
And cost of 4 dozen tables = 4 x 12 x 937 = Rs. 44976
? Total cost =15408 + 44976
= Rs. 60384
= Rs. 60000 (Approximately)
Correct Answer: 5
Explanation:
? Five dozen = 5 x 12 = 60
? No of toys can be kept in 1 box = 60
? No of toys can be kept in 98 boxes = 60 x 98 = 5880
? 29400 toys can be lifted by = 29400 / 5880 = 5 tempos
Correct Answer: 40
Explanation:
Let 80/y = y/20
Then, y 2 = 80 x 20 = 1600
? y = ?1600 = 40.
Correct Answer: 63
Explanation:
Let (y/21) x (y/189) = 1
Then , y2 = 21 x 189 = 21 x 21 x 9
? y = (21 x 3) = 63 .
Correct Answer: 29
Explanation:
On dividing 13601 by 86, we get 29 as remainder
? Required number to be subtracted = 29.
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