Question
The ratio of the number of English books to Hindi books
in a library shelf is 5:4. If 140 Hindi books are written by Pradeep, which constitutes 20% of the Hindi books, then find the difference between the number of English books and Hindi books in the shelf.Solution
Number of Hindi books = 140/0.2 = 700 Number of English books = 700 × (5/4) = 875 Required difference = 875 – 700 = 175
If sin⁴ x + cos⁴ x = 5/8, then the value of sin2x is
Aman invested Rs. 13,000 in a scheme offering simple interest of 20% p.a. For how many months should he keep his money invested in the scheme if he wish...
2, 5, 16, 65, ?, 1957
Two cars, A and B, are traveling in the same direction on a highway. The ratio of their speeds is 3:4. If both cars increase their speeds by 15 km/h, th...
A share is to be distributed among A, B, C, D in the ratio 7 : 5 : 4 : 2. If C gets Rs 500 more than D, what will be the share of B?
Let A represent the sum of the two smallest prime numbers. Let B be the average of the largest and second-largest two-digit prime numbers. Determine the...
(32) -3/5 = ?
A merchant mixes two varieties of rice, one costing ₹55 per kg and the other costing ₹80 per kg, and sells the mixture at ₹75 per kg, making a pro...