Question
Meena has 72 marbles of two colours – green and
yellow. If she buys 24 more green marbles, the ratio of green to yellow marbles becomes 5:3. Find the number of green marbles Meena initially had.Solution
Let the number of green and yellow marbles with Meena after buying 24 more marbles be '5x' and '3x' respectively. ATQ: 5x + 3x = 72 + 24 8x = 96 x = 12 Number of green marbles after buying = 5x = 5 × 12 = 60 Number of green marbles Meena initially had = 60 – 24 = 36
More No. System Questions
- What will be come in place of (?) in the given expressions.
√324 + (18 × 5) – 72 ÷ 8 = ? - What will come in place of the question mark (?) in the following questions?
(2⁴ + 6²) ÷ 2 = ? 226 x 15 - 11 x 99 + (41)2 = ?
(43)² - (28)² + (32)² = ?% of 2500
(18 x 3) + (36 x 8) = ? + 10
289 + 896 + 144 – 25% of 1100 =?
What will come in the place of question mark (?) in the given expression?
(40% of ? × 43 ) – 232 = 751
[192 ÷ 6 × 5] ÷ (? + 3) = 20
{(522 – 482 ) ÷ (27 + 73)} × 35 = ?% of 175
55% of ? = 45 + 20 × 6
