Grade-9 Math Competition

The product of a natural number and its successor is always ________.

• a prime number

• a number divisible by 3

• an odd number

• a number divisible by 2

Subtract 26.325 from the sum of 84.65 and 8.9.

• 67.125

• 68.125

• 68.325

• 67.225

• None of these

Find the missing number, if same rule is followed in all the three figures.

• 36

• 72

• 18

• 27

• 650

• 646

• 648

• 645

• ₹ 24000

• ₹ 27000

• ₹ 25000

• ₹ 28000

Which greatest number will divide 3028 and 5054 leaving remainders 13 and 14 respectively?

• 30

• 45

• 60

• 15

How many digits are required for numbering the pages of a book having 250 pages?

• 639

• 637

• 642

• 640

Maya has equal number of 20 paise and 50 paise coins. The total value of the coins is ₹ 16.80. If she spent five 50 paise coins, how many 50 paise coins did she have left?

• 24 coins

• 43 coins

• 19 coins

• 21 coins