Question
A person buys books at Rs. 300 for 5 and sells them at
Rs.740. How many books must he sell in order to earn profit of Rs. 3,520?Solution
C.P. of 5 books = Rs.300 S.P. of 5 books = Rs. 740 ∴ Profit earned by selling 5 books = Rs. 440 Rs. 440 is earned by selling 5 books. ∴ Rs.3, 520 will be earned by selling =5*3520/440 =40 books.
- What will come in place of (?) in the given expression.
(18.5 × 2) + (3.5 × 4) = ? {5% of (20 × 25) + 6% of (30 ×35)} ÷ 11 = ?Â
7292/3 = ?
350% of (450 / 1.5) = ?% of 4200Â Â
What will come in the place of question mark (?) in the given expression?
7 X 18 + ? = (52 - 6) X 9
50 ÷ 2.5 × 64 + ? = 1520
(5832)1/3  × 10.11 × 11.97 ÷ 16.32 = ? + 45.022
18 × √225 + 378 ÷ √441 = ? × 9Â
15848 ÷ 4 – 793 × 6 + 3628 = 3 × ?
- What will come in place of (?), in the given expression.
(12% of 250) + (30% of 400) = ?