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- Question
A shopkeeper marks up his wares by 80% and offers 20% discount. What will be the selling price (in Rs) if the cost price is Rs 450?
Options- A. 548
- B. 748
- C. 848
- D. 648
- Correct Answer
- 648
- 1. A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of 45° with the man's eye when at a distance of 60 meter from the tower. After 5 second, the angle of depression becomes 30°. What is the approximate speed of the boat, assuming it is running in still water?
Options- A. 32 Km/h
- B. 42 Km/h
- C. 38 Km/h
- D. 36 Km/h Discuss
- 2. {(476 + 424)2 - 4 x 476 x 424} =?
Options- A. 2906
- B. 3116
- C. 2704
- D. 2904
- E. None of these Discuss
- 3. When 1/7 of a number is subtracted from the number itself, it gives the same value as the sum of all the angels of a triangle. What is the number?
Options- A. 224
- B. 210
- C. 140
- D. 350 Discuss
- 4. The angles of elevation of the top of a tower from the points P and Q, at distances of 'a' and 'b' respectively from the base of the tower and in the same straight line with it are complementary. The height of the tower is :
Options- A. ?ab
- B. a b
- C. ab
- D. a2b2 Discuss
- 5. If (64)2 - (36)2 = 20 x x, then x =?
Options- A. 70
- B. 120
- C. 180
- D. 140
- E. None of these Discuss
- 6. In a division sum, the divisor is ten times the quotient and five times the remainder. If the remainder is 46, then find the dividend?
Options- A. 5388
- B. 5343
- C. 5336
- D. 5391 Discuss
- 7. The true discount on a bill of Rs. 2160 is Rs. 360. What is the banker's discount?
Options- A. Rs. 432
- B. Rs. 422
- C. Rs. 412
- D. Rs. 442 Discuss
- 8. Which of the following numbers will completely divide (4915 - 1)?
Options- A. 8
- B. 14
- C. 46
- D. 50 Discuss
- 9. The sum of the digits of a two-digit number is 14 and the difference between the two digits of the number is 2. What is the product of the two digits of the two-digit number?
Options- A. 56
- B. 48
- C. 45
- D. Couldn't be determined Discuss
- 10. (7 + 7 + 7 ÷ 7) / (5 + 5 + 5 ÷ 5) =?
Options- A. 1
- B. 1 / 5
- C. 15 / 11
- D. 3 / 11 Discuss
More questions
Correct Answer: 32 Km/h
Explanation:
Correct Answer: 2704
Explanation:
| Given Exp. | = [(a + b)2 - 4ab], where a = 476 and b = 424 |
| = [(476 + 424)2 - 4 x 476 x 424] | |
| = [(900)2 - 807296] | |
| = 810000 - 807296 | |
| = 2704. |
Correct Answer: 210
Explanation:
Let the number be P.
According to the question,
P - P/7 = 180
? 6P/7 = 180
? P = 180 x 7/6 = 210
Correct Answer: ?ab
Explanation:
Correct Answer: 140
Explanation:
20 x x = (64 + 36)(64 - 36) = 100 x 28
| ⟹ x = | 100 x 28 | = 140 |
| 20 |
Correct Answer: 5336
Explanation:
Divisor = 5 x 46 = 230
Also, 10 x Quotient = 230
? Quotient = 23
We know that
Dividend = (Divisor x Quotient ) + Remainder
? Dividend = (230 x 23) + 46
? Dividend = 5290 + 46 = 5336
Correct Answer: Rs. 432
Explanation:
Correct Answer: 8
Explanation:
( x n - 1) will be divisibly by ( x + 1) only when n is even.
(4915 - 1) = {(72)15 - 1} = (730 - 1), which is divisible by (7 +1), i.e., 8.
Correct Answer: 48
Explanation:
Let be the ten's digit be P and unit's digit be Q.
The two-digit number = 10P + Q
(where, P > Q)
According to the question,
P + Q = 14 ......(i)
and P - Q = 2 .......(ii)
solving Eqs. (i) and (ii), we get
P = 8 and Q = 6
? Required product = 8 x 6 = 48
Correct Answer: 15 / 11
Explanation:
Given expression = (7 + 7 + 7 ÷ 7) / (5 + 5 + 5 ÷ 5)
= (14 + 1) / (10 + 1)
=15 / 11
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