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Two students appeared for an examination. One of them secured 10 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are ? |
| A) 52 and 42 B) 68 and 58 C) 63 and 53 D) 15 and 5 Correct Answer : 15 and 5 Explanation : Let, the marks of first students be x Then marks of second students be (x + 10) x + 10 = 3/4 (2x + 10) |
A certain company has 120 employees who are engineers. Here, engineers constitute 30% of its work force. How many people are employed in the company? |
| A) 500 B) 400 C) 300 D) 200 Correct Answer : 400 Explanation : Let the number of employee = X 30% of X = 120 |
23% of a bucket full of diluted milk was water. If the quantity of pure milk in the bucket was 15.4 liter, then the capacity of the bucket was ? |
| A) 20 liter
B) 22 liter
C) 20.9 liter
D) 19.8 liter
Correct Answer : 20 liter Explanation : capacity of the bucket = X pure milk in bucket = X - 23*X/100 = 15.4 |
If x is 15% of y and y is 40% of z, then x+y is what % of z ? |
| A) 6
B) 21
C) 46
D) 55
Correct Answer : 46 Explanation : Let z= 100 So, y is 40% of z = 40 x+y= 46 that is 46% of z |
In 2004, a new shirt costs Rs 250, while in 2005 it will cost Rs 400. Calculate by how much percent has the cost of the shirt increased from 2004 to 2005? |
| A) 40% B) 55% C) 60% D) 90% Correct Answer : 60% Explanation : As Given, Increase in Cost from 2004 to 2005 = Rs 400 - Rs 250 = Rs 150 %increase in the price of shirt from 2004 to 2005 = 60% |
X sells his goods 20% cheaper than Y and 20% dearer than Z. How many % is Z's goods cheaper/dearer than Y's? |
| A) 33.33% B) 40% C) 42.5% D) 50% Correct Answer : 33.33% Explanation : Let SX, SY & SZ are selling prices of goods of X, B & C respectively SX/SY = 4/5 =4*3/5*3 = 12/15 ..(1a) From (1b) & (1a), SZ < SY, Z is cheaper than Y Therefore Z is 33.33% cheaper than Y. |
In an examination, 36% of the students failed in English and 40% failed in Hindi. If 20% of the students failed in both subjects, then the pass percentage is? |
| A) 40% B) 42% C) 44% D) 46% Correct Answer : 44% Explanation : As given,
number of student who pass in both Subjects are Hence the pass percentage is 44% |
20% of a quantity is Rs 400, the quantity equals? |
| A) Rs. 200 B) Rs. 800 C) Rs. 2000 D) Rs. 8000 Correct Answer : Rs. 2000 Explanation : Let the quantity be Q. |
Shirin went to a bakery and bought items worth Rs 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items? |
| A) Rs. 12 B) Rs. 19.70 C) Rs. 19.10 D) Rs. 18.80 Correct Answer : Rs. 19.70 Explanation : Total cost of the items he purchased = Rs. 25 Then,6% of x = 30/100 ∴Cost of tax free items=(Total cost -(taxable purchases + Total tax )) |