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- Question
- The length of a rectangular field is 100 m and its breadth is 40 m. What will be the area of the field?
Options- A. (4 x 102) sq m
- B. (4 x 10) sq m
- C. (4 x 104) sq m
- D. (4 x 103) sq m
- Correct Answer
- (4 x 103) sq m
ExplanationRequired area = Length x Breadth
= 100 x 40 = 4000 sq m
= 4 x 103 sq m - 1. The difference between two number is 18 if four times the second number is less then three what is the sum these two number?
Options- A. 100
- B. 80
- C. 86
- D. 92 Discuss
- 2. The radii of two spheres are in the ratio 1 : 2 . The ratio of their surface areas is?
Options- A. 1 : 2
- B. 1 : 4
- C. 1 : ?2
- D. 3 : 8 Discuss
- 3. A. B and C together start a business. B invests of 1/6 of the total capital while investments of A and C are equal. If the annual profit on this investment is ? 33600, find the difference between the profits of B and C.
Options- A. ? 8400
- B. ? 7200
- C. ? 6000
- D. ? 9600 Discuss
- 4. What annual payment will discharge a debt of ? 1092 due in 2 yr at 12% simple interest?
Options- A. ? 725
- B. ? 325
- C. ? 515
- D. ? 900 Discuss
- 5. ? 4/3 - ? 3/4 =?
Options- A. 1/2?3
- B. - 1/2?3
- C. 1
- D. 2?3 Discuss
- 6. My watch gains 5 minutes in every hour. How many degrees the second hand moves in every minute?
Options- A. 375°
- B. 380°
- C. 390°
- D. 365° Discuss
- 7. The Volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 12.8 m 3. The breadth of the wall is?
Options- A. 30 cm
- B. 40 cm
- C. 22.5 cm
- D. 25 cm Discuss
- 8. In a company, 60% of the employees are men. Of these 40% are drawing more than ? 50000 per year. If 36% of the total employees of the company draw more than? 50000 per year, then what is the percentage of women who are drawing less than ? 50000 per year?
Options- A. 70%
- B. 60%
- C. 40%
- D. 30% Discuss
- 9. A jogger desires to run a certain course in 1/4 less time than he usually takes. By What per cent must be increase his average running speed to accopplish the goal?
Options- A. 50%
- B. 20%
- C. 25%
- D. 331/3 Discuss
- 10. If the price of mangoes is decreased by 40%, one could get 32 more mangoes for ? 120. Find the original price of each mango.
Options- A. ? 3.50
- B. ? 2.50
- C. ? 2.25
- D. ? 2.00 Discuss
More questions
Correct Answer: 92
Explanation:
Let first number = P
And second number = Q
According to the question
P - Q = 10 ....(i)
And 3P - 4Q = 18...(ii)
on multiply eq (i) by 3 and then subtract eq (ii) from it
3P - 3Q = 54
3P - 4Q = 18
Q = 36
On putting the value of Q in the eq (i)
P = 18 + Q = 18 +36
? P = 54
Required sum = P + Q = 54 +36 =90
Correct Answer: 1 : 4
Explanation:
Let their radii be x and 2x .
Ratio of their surface areas = [4?x2]/[4?(2x)2] = 1/4 = 1 : 4
Correct Answer: ? 8400
Explanation:
Given, Investment of B = 1/6 of total capital
? Investments of A and C each = 1/2(1 - 1/6) of total capital
= (1/2) x (5/6) of total capital
= (5/12) of total capital
Now. A's share : B's share : C's share = (5/12) : (1/6) : (5/12) = 5 : 2 : 5
Let A's share = 5N
B's share = 2N
C's share = 5N
According to the question.
5N + 2N + 5N = 33600
? 12N = 33600
? N = 33600/12 = 2800
? Difference in the profits of B and C
= 5N - 2N = 3N = 3 x 2800 = ? 8400
Correct Answer: ? 515
Explanation:
According to the formula,
Annual payment = 100P / [100 x T + {RT (T - 1)/2}]
= (1092 x 100) / [100 x 2 + {24 (2 - 1)/2}]
= (1092 x 100)/2012
= ? 515.09
? ? 515
Correct Answer: 1/2?3
Explanation:
?4/?3 - ?3/?4
= 2/?3 - ?3/2
= (4 - 3)/2?3
= 1/2?3
Correct Answer: 390°
Explanation:
Since minute hand gains 5 minutes in every 60 minutes
⇒ second hand gains 5 seconds in every 60 seconds
∴ In every 60 seconds true time, it moves 65 seconds
⇒ 65 × 6° = 390°.
Hence , required answer will be 390° .
Correct Answer: 40 cm
Explanation:
Let breadth = L meters. Then, height = 5L meters and length = 40L meters
? L x 5L x 40L = 12.8
? L3 = 12.8/200 = 128/2000 = 64/1000
? L = 4/10
Thus, breadth = (4/10) m = (4 x 100)/10 cm = 40 cm
Correct Answer: 70%
Explanation:
Let total number of employee be 100.
? Number of men = 60% of 100 = 60
and number of women = 40% of 100 = 40
Number of men drawing more than ? 50000 = 40% of 60 = 24 men
Since, number of total employees drawing more than ? 50000 = 36% of 100 = 36
Number of women who more than ? 50000 = 36 - 24 = 12
Number of women who draw less than ? 50000 = 40 - 12 = 28
Percentage of women who draw less then ? 50000 per year = (28 x 100)/40 = 70%
Correct Answer: 331/3
Explanation:
Let usual speed and usual time taken by the jogger are D and T, respectively.
Let his new speed be D'. Then,
DT = (3D'/4)T
? D = 3D'/4
? D' = 4D/3
Thus, he has to increased his speed by
[(4D/3 - D) / D] x 100% .
= 331/3 %
Correct Answer: ? 2.50
Explanation:
Let the original price be ? N per kg.
New price per kg = 60% of N = 3N/5
? 120 / (3N/5) - 120/N = 32
? 600/3N - 120/N = 32
? 200/N - 120/N = 32
? 80/N = 32
? N = 80/32 = 2.5
So, the original price is ? 2.50
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