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- Question
21% of 500 + 31% of 1100 - 30% of 790 = ?
Options- A. 209
- B. 290
- C. 309
- D. 390
- Correct Answer
- 209
ExplanationGiven 21% of 500 + 31% of 1100 - 30% of 790 = ?
? = 21 x 5 + 31 x 11 - 3 x 79
? = 105 + 341 - 237
? = 446 - 237
? = 209.
- 1. In a school of 1500 boys, 35% are Hindu, 30% are Sikh,15% are Muslims and remainning are Christians. Find number of christian boys in the school ?
Options- A. 250
- B. 200
- C. 300
- D. 350 Discuss
- 2. 5% people of a village in India died by dengue, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning ?
Options- A. 4400
- B. 3100
- C. 2800
- D. 5600 Discuss
- 3. A duster is of dimension 5x5x7 all in cms, is sinked into a cylindrical vessel of radius 5 cm and height 10 cm. After insertion the level of the water is inccresed by 2.14 cm. Then by what percentage the part of the duster is above the layer ?
Options- A. 96 %
- B. 4 %
- C. 97 %
- D. 3 % Discuss
- 4. The marked price of a Watch is Rs.8400. It is to be sold at Rs.6896 at two successive discounts. If the first discount is 12%, the second discount is ?
Options- A. 7.2 %
- B. 9.14 %
- C. 7.13 %
- D. 6.709 % Discuss
- 5. Last year vivek saved 10% of his annual earnings, this year he earned 5% more than last year and he saved 12% of his annual earnings. The amount saved this year was what percentage of the amount saved last year ?
Options- A. 87%
- B. 98%
- C. 138%
- D. 126% Discuss
- 6. Sairam spent Rs. 38460 on the renovation of his home and Rs. 24468 on buying TV set and remained with 28% of the total amount. What was the total amount?
Options- A. Rs. 87400
- B. Rs. 68700
- C. Rs. 74000
- D. Rs. 94060 Discuss
- 7. 63.5% of 8924.2 +? % of 5324.4 = 6827.5862
Options- A. 28
- B. 22
- C. 18
- D. 12 Discuss
- 8. 445 of 229.79 = ? of 2398.51
Options- A. 23/50
- B. 36/49
- C. 33/41
- D. 29/47 Discuss
- 9. a% of b + b% of a = ______
Options- A. 2a% of b
- B. 2a% of 2b
- C. 2a% of 2a
- D. 2b% of 2b Discuss
- 10. The marked price of a shirt is Rs 1280. If the shirt is being sold for Rs 900, then what is the discount percentage?
Options- A. 31.31
- B. 25.57
- C. 29.68
- D. 34.36 Discuss
Percentage problems
Search Results
Correct Answer: 300
Explanation:
In that 35% are Hindu, 30% are Sikh, 15% are Muslims
=> 35 + 30 + 15 = 80%
Remaining Boys = 100% - 80% = 20% of 1500
=> 20 x 1500/100 = 300 boys are Christians.
Correct Answer: 4400
Explanation:
Let 'P' be the original population at the beginning
P x (95/100) x (85/100) = 3553
P = 4400.
Correct Answer: 4 %
Explanation:
Imension of the duster is assumed as 5x5x7 cm3
Volume of the duster below the water layer
= volume of water increased
= ?xrxrxh = 3.14×52×2.14 ? 168 cm3
Total volume of the duster = 5×5×7 = 175 cm3
Percentage of the duster part below the layer = 168×100/175 = 96%
Percentage of the duster part above the layer = 4%
Correct Answer: 6.709 %
Explanation:
(100-x)% of 88% of 8400 = 6896
=>
=> x = 6.709%
Correct Answer: 126%
Explanation:
Suppose total earnings = Rs. 10000
10% saving = 10000 x (10/100) = Rs. 1000
This year 5% more income than prev year = Rs. 10500
12% saving = 10500 x (12/100) = Rs. 1260
Percentage of amount saved = (1260/1000) x 100 = 126%
Correct Answer: Rs. 87400
Explanation:
Let the total amount he had with = Rs. p
From the given data,
p - 38460 - 24468 = 28p/100
p - 28p/100 = 24468 + 38460
72p/100 = 62928
72p = 62928 x 100
p = 62928 x 100/72
p = 87400
Hence, the total amount he had = p = Rs. 87400.
Correct Answer: 22
Explanation:
63.5% of 8924.2 +? % of 5324.4 = 6827.5862
=> 63.5% of 8925 + ? % of 5325 = 6830
=> 6830 ~= 5320 + ?(5325)/100
=> ? ~= 22
Correct Answer: 23/50
Explanation:
Given
Correct Answer: 2a% of b
Correct Answer: 29.68
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