At a farm, there are hens, cows and bullocks, and the keepers to look after them. There are 69 heads less than legs; the number of cows and hens is the same and there is one keeper per ten birds and cattle. The total number of hens plus cows and bullocks, and their keepers does not exceed 50. How many cows are there?

A) 16

B) 14

C) 12

D) 10


A man has a certain number of small boxes to pack into parcels. If he packs 3, 4, 5 or 6 in a parcel, he is left with one over; if he packs 7 in a parcel, none is left over. what is the number of boxes, he may have to pack?

A) 106

B) 301

C) 309

D) 400


In a certain office, 1/3 of the workers are women, 1/2 of the women are married and 1/3 of the married women have children.If 3/4 of men are married and  2/3 of the married men have children, What part of the workers are without children?

A) 5/18

B) 4/9

C) 11/18

D) 17/36


Five children take part in a tournament. Each one has to play every other one. How many g€unes must they play

A) 8

B) 10

C) 24

D) 30