Basic Arithmetic

202 questions available

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All Number System 55 Fractions & Decimals 52 BODMAS & Simplification 53 Factors & Multiples 1 LCM & HCF 5 Divisibility 6 Approximation 30
Showing 161–180 of 202

Q161.An Urdu class has 12 boys and 18 girls. Boys are what fraction of the class?

Medium
A 3/5
B 2/3
C 3/4
D 2/5
Fractions & Decimals PPSC

Correct Answer: D

Total students = 12 + 18 = 30. Fraction of boys = 12 / 30 = 2/5.

Q162.Six tenths is the same as?

Medium
A 60
B 0.6
C 6.0
D None of these
Fractions & Decimals PPSC

Correct Answer: B

Six tenths = 6 / 10 = 0.6.

Q163.Sam bought a 12-pack of soda for $5.40. How much did he pay per can of soda?

Medium
A $0.45
B $0.54
C $0.40
D $0.22
Fractions & Decimals PPSC

Correct Answer: A

Cost per can = $5.40 / 12 = $0.45.

Q164.The value of 1/3 of 24 is?

Medium
A 4
B 6
C 8
D 12
Fractions & Decimals PPSC

Correct Answer: C

1/3 * 24 = 8.

Q165.Solve: √(13⁴)

Medium
A 520
B 169
C 28561
D None of these
Number System PPSC

Correct Answer: B

sqrt(13^4) = 13^(4/2) = 13^2 = 169.

Q166.Which of the following is the smallest fraction? 11/13, 9/11, 3/4, 5/7

Medium
A 11/13
B 9/11
C 3/4
D 5/7
Fractions & Decimals PPSC

Correct Answer: D

Decimal values: 11/13 ≈ 0.846; 9/11 ≈ 0.818; 3/4 = 0.75; 5/7 ≈ 0.714. Smallest is 5/7.

Q167.What is the square root of 13 (√13)?

Medium
A 3.302
B 3.605
C 3.872
D 4.000
Number System PPSC

Correct Answer: B

sqrt(13) ≈ 3.60555, rounded to thousandth place is 3.605.

Q168.Solve 6.334 * 10^4

Medium
A 0.0006334
B 0.06334
C 6334
D 63340
Number System PPSC

Correct Answer: D

6.334 * 10000 = 63340.

Q169.What is the value of 1/3 × 1/2?

Medium
A 1/3
B 1/2
C 1/6
D 2/3
Fractions & Decimals PPSC

Correct Answer: C

(1 * 1) / (3 * 2) = 1/6.

Q170.What is the value of √10 × √490?

Medium
A 50
B 60
C 70
D 80
Number System PPSC

Correct Answer: C

sqrt(10) * sqrt(490) = sqrt(4900) = 70.

Q171.What is one third of one half?

Medium
A 1/2
B 1/8
C 1/6
D 1/32
Fractions & Decimals PPSC

Correct Answer: C

1/3 * 1/2 = 1/6.

Q172.How many 1/8s are in 37 1/2?

Medium
A 295
B 300
C 310
D 285
Fractions & Decimals PPSC

Correct Answer: B

37 1/2 = 75/2. Dividing by 1/8: (75/2) / (1/8) = (75/2) * 8 = 300.

Q173.If x ≠ 0, simplify x(x⁵)⁴ / x⁴ =

Medium
A x⁵
B x⁶
C x¹⁷
D x⁸
Number System PPSC

Correct Answer: C

x * (x^5)^4 / x^4 = x * x^20 / x^4 = x^21 / x^4 = x^17.

Q174.What is a quarter of 1/10 of 120?

Medium
A 2
B 3
C 6
D 12
Fractions & Decimals PPSC

Correct Answer: B

First, find 1/10 of 120: 120 / 10 = 12. Next, find a quarter of 12: 12 / 4 = 3.

Q175.The fraction 1/10 is equal to what decimal?

Medium
A 0.01
B 0.1
C 1.0
D 10
Fractions & Decimals PPSC

Correct Answer: B

1 divided by 10 is 0.1.

Q176.Which of the following numbers does not belong in the group: 1, 2, 5, 7, 8?

Medium
A 1
B 2
C 5
D 8
Number System PPSC

Correct Answer: D

8 is an even composite number. All other numbers are prime or unit non-composite integers.

Q177.Which of these numbers is different from the rest: 3, 5, 7, 9?

Medium
A 3
B 5
C 7
D 9
Number System PPSC

Correct Answer: D

3, 5, and 7 are prime numbers, while 9 is a composite number (divisible by 3).

Q178.What is the value of 3/5 − 4/5?

Medium
A 1/5
B -1/5
C 7/10
D -7/10
Fractions & Decimals PPSC

Correct Answer: B

(3 - 4) / 5 = -1/5.

Q179.Evaluate: 1.8 × 1.5

Medium
A 2
B 2.7
C 3
D None of these
Fractions & Decimals PPSC

Correct Answer: B

1.8 × 1.5 = 2.7.

Q180.What is 3/4 in decimal form?

Medium
A 0.25
B 0.5
C 0.75
D 0.33
Fractions & Decimals PPSC

Correct Answer: C

3 divided by 4 is 0.75.