Question
7 men and 4 boys can complete a work in 6 days. A man
completes double the work than a boy. In how many days will 5 men and 4 boys complete the work?Solution
7 M + 4 B = 6 days and 1 man = 2 boys 7 M + 2 M = 6 days ⇒ 9M = 6 days 1 M = 6 `xx` 9 = 54 days Now, 5 M + 2M = 7M 1 M = 54 days 7M = `54/7 = 7 5/7days`
What will come in the place of question mark (?) in the given expression?
(5/8) × 1600 + (2400 ÷ 25) = ?Â
- What will be come in place of (?) in the given expressions.
45% of 640 + 35% of 320 = ? 5 × 14 + 100 ÷ 4 = 62 + ?
690 ÷ (75% of 460) = ? ÷ (50% of 160)
115 ÷ 23 + 12 × 6 = ? + 16 - 35
Simplify the following expressions and choose the correct option.
(45% of 640) ÷ 8 + (3/4 of 96) = ?
15% of 360 × 20% of ? = 324
- What will come in the place of question mark (?) in the given expression?
(120 - ?) ÷ 2 + 35 = 86 - 11 8 × 9 + ? – 6 × 11 = 12 × 8
[1.45 X 1.45 X 1.45 + 0.55 X 0.55 X 0.55 + 4.785] = ?