A boy started from his home in the morning and walked 8 km. in the direction of Sun. Then he walked 3 km. after turning to the right. Then he walked 2 km after turning to the right, and then walked 1 km. after turning to the left. Then he walked 1 km. after turning to the right and then 4 km. after turning to the right. How far is he now from the starting point?

If 25 A 9 B 3=75 and 15 A 6 B 2=45, then 16 A 8 B 2=?

If the ink of one pan ends up writing 10 page, how many panes will be required to write 20 copies of 40 page?

Select the set in which the numbers are related in the Same way are the numbers of the following set.
(3,24,4)

Out of 100 families in the neighbourhood, 50 members have radios , 75 members have TVs and 25 members have VCRs . Only 10 families have all three and each VCR owner also has a TV . If some families have radio only , how many have only TV ? 

In these questions certain pairs, group and numbers are given out of which all except one are similar in some manner while one is different.

Choose the odd number pair group in each of the following questions:

Which two numbers have to be interchanged to correct the given equation?
55 + 32 – 4 × ( 1 × 12 ) + ( 16 ÷ 4 ) =31

Hari travelled 17 km. in the East, then he turned to the left and went 15 km ahead. Then he turned to the left and went 17 km. How far was he from the starting point now?