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$\sqrt{\frac{4}{3}} - \sqrt{\frac{3}{4}} = ?$

The ages of Sabiha and Suriya are in the ratio of 7: 3 respectively. After 6 years, the ratio of their ages will be 5:3. What is the difference in their ages?

A scored 30% marks and failed by 15 marks. B scored 40% marks and obtained 35 marks more than those required to pass. The pass percentage is-

A. B and C are partners in a business. Their shares are in the proposition of

1/3:1/4:1/5.

A withdraws half of his capital after 15 months and after another 15 months, a profit of Tk. 4340 is divided. The share of C is-

Two coins are tossed. What is the probability of getting at most one head?

A train with a length of 150m long, takes 30 seconds to cross a 500m long bridge. How much time will the take to cross a 370m long platform?

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km / hr ) of the boat in still (without stream) water?

A student walks from his house at a speed of $2 \frac{1}{2}$ km per hour and reaches his school 6 minutes late. The next day he increases his speed by 1 km per hour and reaches 6 minutes before school time. How far is the school from his house?

A man buys an article for 10% less than its value and sells it for 10% more than its value. His gain or loss percentage is-

A reservoir has two pipes, A and B. A can fill the reservoir 5 hours faster than B. If both together fill the reservoir in 6 hours, the reservoir will be filled by A alone in-