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- Question
- The least perfect square which is divisible by each of 21, 36 and 66 is equal to?
Options- A. 213444
- B. 223444
- C. 213442
- D. 223445
- Correct Answer
- 213444
ExplanationAns. LCM of 21, 36 and 66 = 2772
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 77 [for (7 x 11)].
? Required number = 22 x 32 x 72 x 112 = 213444 - 1. The reflex angle between the hands of a clock at 10.25 is
Options- A. 197 1/2
- B. 167 1/2
- C. 157 1/2
- D. 187 1/2 Discuss
- 2. In the following question, select the odd number pair from the given alternatives.
Options- A. 11 ? 120
- B. 17 ? 290
- C. 21 ? 442
- D. 12 ? 145 Discuss
- 3. U and V started a business by investing amounts Rs 184000 and Rs 224000 respectively. If U?s share in the profit received at the end of year is Rs 20700, then what will be the total profit (in Rs)earned by them together?
Options- A. 43200
- B. 45900
- C. 52300
- D. 56400 Discuss
- 4. 36 is what percent of 80?
Options- A. 54
- B. 45
- C. 60
- D. 64 Discuss
- 5. What is the probability that a number is divisible by 4?
Options- A. 2
- B. 1/2
- C. 1/4
- D. 1 Discuss
- 6. U and V started a business by investing amounts Rs 184000 and Rs 224000 respectively. If U?s share in the profit received at the end of year is Rs 20700, then what will be the total profit (in Rs) earned by them together?
Options- A. 43200
- B. 45900
- C. 52300
- D. 56400 Discuss
- 7. What will come in place of the question mark(?) in the following question ? 56% of 870 + 82% of 180 = 32% of 90 + ?
Options- A. 777
- B. 666
- C. 606
- D. 789 Discuss
- 8. Two dice are rolled simultaneously. Find the probability of getting the sum of numbers on the on the two faces divisible by 3 or 4?
Options- A. 3/7
- B. 7/11
- C. 5/9
- D. 6/13 Discuss
- 9. Profit of Rs 1,03,500 has to be divided between three partners A, B and C in the ratio 11:7:5. How much amount (in Rs) does B get?
Options- A. 22,500
- B. 49,500
- C. 50,500
- D. 31,500 Discuss
- 10. If the price of a commodity is decreased by 20% and its consumption is increased by 10%, what will be the increase or decrease in the expenditure on the commodity?
Options- A. increase 12%
- B. decrease 12%
- C. increase 16%
- D. decrease 16% Discuss
More questions
Correct Answer: 197 1/2
Correct Answer: 11 ? 120
Correct Answer: 45900
Correct Answer: 45
Explanation:
Let 36 is p% of 80
=> p x 80/100 = 36
=> p = 36 x 10/8 = 45.
Correct Answer: 1/2
Explanation:
Probability is Number of favourable outcomes by total outcomes
Total comes = 2 (Divisible or not)
Favourable = 1 (Divisible)
Hence, probability = 1/2.
Correct Answer: 45900
Correct Answer: 606
Explanation:
56% of 870 = 56x870/100 = 487.20
82% of 180 = 82x180/100 = 147.60
32% of 90 = 32x90/100
487.20 + 147.6 - 28.8 = ?
? = 634.8 - 28.8
? = 606.
Correct Answer: 5/9
Explanation:
Here n(S) = 6 x 6 = 36
E={(1,2),(1,5),(2,1),(2,4),(3,3),(3,6),(4,2),(4,5),(5,1),(5,4),(6,3) ,(6,6),(1,3),(2,2),(2,6),(3,1),(3,5), (4,4),(5,3),(6,2)}
=> n(E)=20
Required Probability n(P) = n(E)/n(S) = 20/36 = 5/9.
Correct Answer: 31,500
Correct Answer: decrease 12%
Explanation:
Given the price of a commodity is decreased by p = 20%
And its consumption is increased by q = 10%
Now, required increase or decrease in the expenditure on the commodity can be
p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%.
Hence, decrease in the expenditure = 12%
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