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IF two trains A and B start at the same time in opposite directions from two stations and arrive at their destinations 4 hours and 9 hours after having met respectively, what is the ratio of speed of train A to that of train B.
The selling price of 5 articles is the same as the cost price of 3 articles. The gain or loss is
5 kg of tea and 8 kg of sugar together cost Rs. 172. The price of tea has risen by 20% and that of sugar by 10%. Hence the same quantities of tea and sugar now cost Rs. 199.20. What is the original price of tea per kg?
The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68. The average marks of the 17 students was
How much quantity of water must be added to 48 ml of alcohol to make a solution that contain 25% alcohol?
Rakesh starts a business by investing some amount. Suresh joins here after three months investing 40% more amount than Rakesh. Vikas joins them for last five months by investing amount equal to 40% of total amount of Rakesh and Suresh together. What will be the share of vikas in annual profit of ₹ 9800?
8 men can finish a certain amount of work in 40 days. If 2 more men join with them, the days needed to do the same amount of work is
sin2 21 º + sin2 69 º is equal to
is equal to:
The sum of all natural numbers between 100 and 200 which are multiples of 3 is
The HCF of two numbers is 23 and other two factor of their LCM are 13 and 14. The largest of two number is
In . Find in circular measure.
Two numbers are in the ratio 9 : 16. If each number is increased by 15, then the ratio becomes 2 : 3. The number are
The radius of a circular pond is 14m. A circular stage is made at the centre of the pond whose diameter is 14 m, what is the area where water is present?
A sum of ₹ 2400 amounts to ₹ 3264 in 4 yr at a certain rate of simple interest. If the rate of interest is increased by 1%, the same sum in the same time would amount to
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Feb 9SSC & Railway