Question
Anshul lives on 19th floor and Keshav lives on 46th
floor. Anshul goes up at a rate of 24 floors per minute and Keshav comes down at a rate of 30 floors per minute. At which floor they will meet?ÂSolution
Total floors between Anshul and Keshav = 46 – 19 = 27 floors Relative speed = 24 + 30 = 54 floor/min Time taken by them to meet = total floors/relative speed = 27/54 = 1/2 min Anshul travels in 1/2 min = 1/2 x 24 = 12 floors Floor at which Anshul and Keshav will meet = 19 + 12 = 31st floor
20.05% of 220.05 – 15.15% of 99.99 × 2.02 = ?
The income of a person is Rs.15000 and his expenditure is Rs.12000. In the next year his income and expenditure is increased by 8% and 13% respectively....
6269 + 0.25 × 444 + 0.8 × 200 = ? × 15
...25.6% of 250 + √? = 119    Â
15% of 5000 - √900 = ? + 10% of 1800
72 + 122 - 25% of 600 = ?
[∛(3375/19683  )- ∛(125/1728  )  ] ÷ ∛(64/729)  = ? - 3/8Â
26 2 – 13% of 400 + (529 ÷ 23 2 ) = ? 2Â
(3984 ÷ 24) x (5862 ÷ 40) = ?
√10201 × √3969 - (52)² = √? + (60)²
...
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