Basic Arithmetic
202 questions available
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Q1.The value of the sum of the first 2 multiples of 5 is?
Correct Answer: B
Q2.Find HCF of 48, 80, and 48p-80 Then P will be?
Correct Answer: A
Q3.0.003* 0.02 =
Correct Answer: C
0.003 × 0.02 = 0.00006.
Q4.Which of the following is not a rational?
Correct Answer: B
√2 is an irrational number since it cannot be expressed as a simple fraction.
Q5.0.003/0.02=?
Correct Answer: A
0.003 ÷ 0.02 = 0.15.
Q6.The Cube roof of 2744 is:
Correct Answer: D
The cube root of 2744 is 14, since 14³ = 2744.
Q7.(2~3)~2=
Correct Answer: A
Per the answer key, applying the given operation yields 2(6).
Q8.Solve.201x199=
Correct Answer: C
201×199 = (200+1)(200-1) = 40000-1 = 39999.
Q9.solve the equation 2(3)x3(2)-5(2)
Correct Answer: B
2³ × 3² - 5² = 8 × 9 - 25 = 72 - 25 = 47.
Q10.1/3 x 3/2 ÷ 1/2?
Correct Answer: B
1/3 × 3/2 ÷ 1/2 = 1/3 × 3/2 × 2/1 = 1.
Q11.A box contains 24chocolates.How many boxes made by 30chocolates?
Correct Answer: D
30 chocolates ÷ 24 per box = 30/24 = 5/4 = 1¼ boxes.
Q12.(100)*1.5=?
Correct Answer: B
100^1.5 = 100 × √100 = 100 × 10 = 1000.
Q13.If "P" is a prime number greater than 3, then (P²-1) is always divisible by:
Correct Answer: B
For any prime P>3, P²-1 is always divisible by 24.
Q14.Simplify 3/4 + 2/3 =
Correct Answer: B
Q15.16 - 9 = ?
Correct Answer: B
Q16.Evaluate: 4^(1/2) x 4^2 - 4^0.
Correct Answer: C
4^(1/2) = 2, 4^2 = 16, 4^0 = 1. So 2 x 16 - 1 = 32 - 1 = 31.
Q17.What is the sum of prime numbers less than 21?
Correct Answer: C
Prime numbers less than 21: 2,3,5,7,11,13,17,19. Their sum = 77.
Q18.The expression 3(-4 x 5 - 6) would be equal to:
Correct Answer: B
-4 x 5 - 6 = -26; 3 x (-26) = -78.
Q19.Arrange in order of size, smallest to largest: (i) 0.5^2 (ii) 0.5 (iii) 0.5^3 (iv) cube root of 0.5
Correct Answer: B
0.5^3 = 0.125, 0.5^2 = 0.25, 0.5 = 0.5, cube root of 0.5 ≈ 0.79. Order smallest to largest: iii, i, ii, iv.
Q20.What is 21 + 17?
Correct Answer: A
Adding 21 and 17 gives 38.