CBSE Class 8 Mathematics Power Play MCQs Set I

Question. Distance around the Earth is about.
(a) 10,000 km
(b) 40,000 km
(c) 1,00,000 km
(d) 5,000 km

Answer: B

Question. Linear growth is additive, but exponential growth is.
(a) Subtractive
(b) Multiplicative
(c) Very slow
(d) Divided

Answer: B

Question. To reach the Moon, it takes 46 folds of paper but how many ladder steps?
(a) 100 crore
(b) 192 crore and 20 lakh
(c) 10 lakh
(d) 50 crore

Answer: B

Question. If a lock has 5 slot with digit 0-9 then the number of possible codes is
(a) 1000
(b) 105
(c) 510
(d) 50

Answer: B

Question. Time taken for light to reach Earth from the Sun is about.
(a) 1 minute
(b) 8 minutes
(c) 20 minutes
(d) 1 hour

Answer: B

Question. In Buddhist text Lalitavistara, hundred kotis are called.
(a) Ayuta
(b) Niyuta
(c) Kankara
(d) Sarvajna

Answer: A

Question. Highest numerical value banknote ever printed was in.
(a) Germany
(b) Hungary
(c) Zimbabwe
(d) India

Answer: B

Question. Roxie is 13 years old and Estu is how many years old?
(a) 10
(b) 11
(c) 12
(d) 14

Answer: B

Question. Estimated drops of water on Earth is 2 multiplied by.
(a) 10 raised to 20
(b) 10 raised to 23
(c) 10 raised to 25
(d) 10 raised to 30

Answer: C

Question. In Indian names for large numbers, a hundred Arab is called.
(a) Crore
(b) Kharab
(c) Neel
(d) Padma

Answer: B

Question. If a lock uses 4 slots with digit 0-5 then the possible combinations are
(a) 4⁵
(b) 5⁴
(c) 6⁴
(d) 4⁶

Answer: C

Question. Special note of 1 sextillion pengő was printed in 1946 in.
(a) Hungary
(b) France
(c) Japan
(d) China

Answer: A

Question. In the game "Tremendous in Ten", who writes the larger number.
(a) Loses
(b) Wins
(c) Gets zero
(d) Starts again

Answer: B

Question. What rule applies when multiplying two different bases raised to the same exponent, such as mᵃ × nᵃ?
(a) (m × n)^a
(b) (m−n)^a
(c) (m ÷ n)^a
(d) (m+n)^a

Answer: A

Question. n raised to 0 is always equal to 1, provided n is.
(a) Zero
(b) Not zero
(c) Positive
(d) Negative

Answer: B

Question. Scientific notation means writing a number as x multiplied by 10 raised to y, where x is.
(a) Between 1 and 10
(b) Any number
(c) Always 10
(d) Zero

Answer: A

Question. The distance between Sun and Earth is 1.496 × 10¹¹ m. This is the standard form of
(a) 14,56,00,000 m
(b) 1,49,60,00,000 m
(c) 14,96,00,00,000 m
(d) 1,49,60,00,00,000 m

Answer: D

Question. What is the value of 5-3 ?
(a) 1/5³
(b) -5³
(c) –1/5³
(d) -5³

Answer: A

Question. The Thickness of a paper sheet is becomes
(a) 0.4096 cm
(b) 4.096 cm
(c) 40.96 cm
(d) 409.6 cm

Answer: B

Question. 10 raised to 100 is also called a.
(a) Million
(b) Googol
(c) Trillion
(d) Billion

Answer: B