The price of 6 pencils is Rs. 30 and that of 12 pens is Rs. 120. What is the average price of 50 pencils and 50 pens?

The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is: 

Pie chart shows the percent of money spent by family on various item during 1999. Study the graph and answer these questions.

If the total amount spent during the year 1999 was Rs. 46000, the amount spent on food was :

From the peak of a hill which is 300m high, the angle of depression of two sides of a bridge lying on a ground are 45° and 30° (both ends of the bridge are on the same side of the hill). Then the length of the bridge is 

The annual payment of Rs.1000 in  5 years at 4% per annum simple interest will discharge a debt of

Priya purchased two mixers for Rs.1500 and made a profit of 9% on one and loss of 6% on the other. But overall there is no profit or loss, then cost price of mixture are in the ratio?

If 0.13 x p² = 13, then p is equal to

At what time between 6 to7 O ' clock minute and hour hand will coincide?