The sum of the areas of the 10 squares, the lengths of whose sides are 20 cm, 21 cm,....29 cm respectively is

• 6085 cm²

• 8555 cm²

• 2470 cm²

• 2470 cm²

The missing term in the sequence
2, 3, 5, 7, 11, .......17, 19 is

• 16

• 15

• 14

• 14

The wrong number in the sequence
8, 13, 21, 32, 47, 63, 83 is

• 32

• 47

• 63

• 63

A number, when divided successively by 4, 5 and 6 leaves remainders 2, 3 and 4 respectively. The least such number is

• 50

• 53

• 56

• 58

A number when divided by 361 gives a remainder 47. If the same number is divided by 19, the remainder obtained is

• 3

• 8

• 9

• 9

The unit digit in the product (2467)¹⁵³ x (341)¹⁷² is

• 7

• 8

• 4

• 4

If the sum of the digits of a three-digit number is subtracted from that number, then it will always be divisible by

• 3 only

• 9 only

• Both 3 and 9

• Both 3 and 9

If , then the value of U₁ + U₂ + U₃ + U₄ + U₅

The sum of the cubes of two numbers in the ratio 3 : 4 is 5824. The sum of the number is 

• (5824)^1/3

• 28

• 24

• 24

50.

What least value must be assigned to '*' so that the number 451*603 is exactly divisible by 9?

• 7

• 8

• 5

• 5