Question
Rohan and Tanuj move towards Dehradun starting from
Delhi at a speed of 30 km/h and 50 km/h respectively. If Tanuj reaches Dehradun 300 minutes earlier than Rohan, what is the distance between Delhi and Dehradun?Solution
let the distance be 'x' km then, according to the question x/30 - x/50 = 300 minutes x/30 - x/50 = 5 hours 5x-3x / 150 = 5 2x = 750 x = 375
1/6+ 999*53/54 ×9 = ?
Evaluate: 25 − 4 × (3 + 2) ÷ 5
What will come in the place of question mark (?) in the given expression?
30% of 520 + 16% of 1500 = ? + 244
√(?) ² = √7396 - √6889
 Simplify the given expression
[1.5 × 1.5 × 1.5 + 2.7 × 2.7 × 2.7 + 4.8 × 4.8 × 4.8 – 3 × 1.5 × 2.7 × 4.8] / [1.5 × 1.5 +2.7 × 2.7 ...
{(80% of 650 + 25 × 12) – 20 × ?} = 760
(506 ÷ 22 + 9 × 3) × ? = 900 ÷ 9
- 60% of 180 – 30% of 60 = 15% of ?
? = (25% of 20% of 800) × 8 – 25% of 260
What value should come in place of the question mark (?) in the following question?
15 × 19 – 13 × 5 = 122 ...