FOUNDATION

It is claimed that the priest architects of Egypt could lay out a right angle with the aid of a rope divided in to a ratio by three knots. What is this ratio?

• 3:4:5
• 2:3:4
• 4:5:6
• 1:2:3

(x-a)(x-b)(x-c)....(x-z) = ?

• 0

• 1

• 2

• none of these

Today is Monday. After 61 days, it will be_______

5+5x5÷5-5=?

• 0

• 5

• 10

• 1

• 30

• 60

• 11

• 16

Acceleration due to gravity at the centre of earth is

• 9.78

• 9.83

• 0

• None of these