CBSE Class 8 Mathematics Algebra Play MCQs Set J

Question. The topmost box in a 3-row pyramid with bottom a, b, c is
(a) a + b + c
(b) a + 2b + c
(c) 2a + 2b + 2c
(d) a + b

Answer: B

Question. If c = 20, then the box a = 12 + c will have the value
(a) 12
(b) 20
(c) 32
(d) 40

Answer: C

Question. If Naina gives 3 cows to Gauri, they both have
(a) different cows
(b) no cows
(c) same number of cows
(d) double cows

Answer: C

Question. Karim thought giving 8 coins to the genie was a
(a) big amount
(b) trifling amount
(c) bad deal
(d) mistake

Answer: B

Question. If you have 2x + 4 and divide by 2, you get
(a) x + 4
(b) 2x + 2
(c) x + 2
(d) x + 8

Answer: C

Question. In Fibonacci sequence, each number is the sum of two numbers
(a) after it
(b) before it
(c) below it
(d) above it

Answer: B

Question. To get the largest product of digits 2, 3, 5, the multiplier must be
(a) 2
(b) 3
(c) 5
(d) 10

Answer: C

Question. The sum of a 2-digit number and its reverse is always divisible by
(a) 9
(b) 11
(c) 10
(d) 5

Answer: B

Question. The sum of abc + bca + cab for any 3-digit number is divisible by
(a) 10
(b) 37
(c) 50
(d) 100

Answer: B

Question. In the magical pond trick, the number of flowers always
(a) triples
(b) doubles
(c) stays same
(d) halves

Answer: B

Question. Reversing the digits of the number 47 will give
(a) 74
(b) 47
(c) 11
(d) 3

Answer: A

Question. If three same circles add up to 27, then one circle is
(a) 7
(b) 8
(c) 9
(d) 10

Answer: C

Question. In the cowherd story, Gauri has x cows and Naina has
(a) x + 2
(b) 2x
(c) x - 2
(d) 3x

Answer: B

Question. In the first "Think of a Number" trick, the final answer is always
(a) 1
(b) 2
(c) 3
(d) 5

Answer: B

Question. If top left is a, the number next to it is
(a) a + 7
(b) a + 1
(c) a + 8
(d) 2a

Answer: B

Question. Cost of making one dosa is
(a) 5000
(b) 50
(c) 10
(d) 2000

Answer: C

Question. Diagonally opposite number to 'a' in 2 x 2 grid is
(a) a + 1
(b) a + 7
(c) a + 8
(d) a + 16

Answer: C

Question. If p < q < r, the largest product is formed by
(a) rq x p
(b) rp x q
(c) qp x r
(d) pq x r

Answer: C

Question. To fill a pyramid with 60 at the top, we can use an
(a) story
(b) equation
(c) picture
(d) map

Answer: B

Question. Algebra is useful for modeling and understanding numerical
(a) pictures
(b) scenarios
(c) colors
(d) names

Answer: B