Percentage

1. In an examination it is required to get 36% of the aggregate marks to pass. A student gets 198 marks and is declared failed by 36 marks. What is the maximum aggregate marks a student can get? (1) 550 (2) 650 (3) 480 (4) Cannot be determined (5) None of these [expand title=”Answer &

1. On my sister’s 15th birthday, she was 159 cm in height, having grown 6% since the year before. How tall was she the previous year? 1. 150 cm 2. 140 cm 3. 142 cm 4. 154 c [expand title=”Answer & Explanation”]  Answer:- 1 Explanation :- let the age of my sister in previous year

1. How many litres of pure acid are there in 8 litres of a 20% solution? 1. 2 litres 2. 1.4 litres 3. 1 litres 4. 1.6 litres [expand title=”Answer & Explanation”] Answer:- 4 Explanation :- pure acid = 20% of 8 lts => ((20/100)*8) lts => 1.6 litres. [/expand]   2. The price of

1. In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is 2/3 of the number of students of 8 years of age which is 48. What is the total number of students in the school? 1. 100 2. 102 3. 110 4.

1. What percentage of numbers from 1 to 70 have 1 or 9 in the unit’s digit? 1. 2023% 2. 20% 3. 21% 4. 2223% [expand title=”Answer & Explanation”] Answer:- 2 Explanation :- Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69. Number

1. Rahul went to a shop and bought things 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? 1. Rs. 15 2. Rs. 12.10 3. Rs. 19.70 4. Rs. 16.80 [expand title=”Answer &

11. Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. What are the marks obtained by them? 1. 42, 33 2. 42, 36 3. 44, 33 4. 44, 36 [expand title=”Answer & Explanation”] Answer:- 1 Explanation Let

1. If the price of petrol increases by 25%, by how much must a user cut down his consumption so that his expenditure on petrol remains constant? A.25% B.16.67% C.20% D.33.33% [expand title=”Answer & Explanation”] Answer:- 3 (X + Y +XY/100) = Net increase or decrease in expenditure 25 + (-Y) + (-25y/100) = 0

1. Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A : B. (1) 2 : 3 (2) 1 : 1 (3) 3 : 4 (4) 4 : 3

1. Three  times  a number  is 20%  more  than  twice  another  number   when  increased  by  105.  If  twice the first  number increased  by 36  is 20% less  than  three  times  of  the  second  number,  then  what  is  the  first  number? (a) 150 (b) 162 (c) 180 (d) None of  these [expand title=”Answer & Explanation”] Answer:-