Question
The ratio of pens to pencils in a shop is 8:5. If 24 pens
are sold and 21 pencils are added, the number of pens and pencils becomes equal. Find the original number of pencils in the shop.Solution
ATQ,
Let the number of pens and pencils be '8n' and '5n', respectively.
So, 8n - 24 = 5n + 21
Or, 'n' = 15
Therefore, number of pencils = 15 × 5 = 75
22 – 15 + 20 × 18 ÷ 6 – 34 = ?
311 × 17 = ? + 2482
- Calculate the value of x if x% of 400 plus {800 ÷ x of 8} × 4 is equal to 88
12.5% of 45 % of 480 + 957/29 = ? -14 × 15
14 × 11 + 25 – ? = 21% of 300
What will come in the place of question mark (?) in the given expression?
? = ((180 × 27) ÷ 60) + ((52 × 70) ÷ (13 × 280))3Â
...What will come in the place of question mark (?) in the given expression?Â
435 ÷ 29 X 792 ÷ 44 = √(? + 14) + 35 + 221 ÷ 17
...(2 ÷ 3) × (4 ÷ 12) × (? ÷ 10) × 45 × (1 ÷ 5) = (? ÷ 6) + (2 ÷ 5)
Find the value of 325 × 5 + 31 × 21 – 22 × (63 − 52).
- What will come in the place of question mark (?) in the given expression?