MCQs on Calendar

[Set - 1]

1. Simplify the following expression: 14 \times 3 + \frac{48}{8} - 7^2

A) -24
B) -18
C) 10
D) 5

Correct Answer: A) -24
Explanation:
Using BODMAS:
14 \times 3 = 42 ,
\frac{48}{8} = 6 ,
7^2 = 49 .
So, 42 + 6 – 49 = -24 .

2. Approximate the value of 673.25 + 189.47 - 432.15 + 223.12

A) 653.9
B) 653.7
C) 654.3
D) 654.0

Correct Answer: B) 653.7
Explanation:
673.25 + 189.47 = 862.72 ,
862.72 – 432.15 = 430.57 ,
430.57 + 223.12 = 653.69 ,
which rounds to 653.7.

3. Calculate the result of 7 \times (5 + 4) - \frac{36}{9}

A) 59
B) 63
C) 58
D) 60

Correct Answer: A) 59
Explanation:
5 + 4 = 9 ,
7 \times 9 = 63 ,
\frac{36}{9} = 4 .
So, 63 – 4 = 59 .

4. Find the approximate result for: 1247.89 \times 2.3 \div 11.7

A) 245.51
B) 245.21
C) 245.02
D) 244.92

Correct Answer: A) 245.51
Explanation:
1247.89 \times 2.3 = 2870.147 ,
2870.147 \div 11.7 \approx 245.51 .

5. Simplify 9^2 - 2^3 + 18 \div 3

A) 76
B) 74
C) 72
D) 70

Correct Answer: B) 74
Explanation:
9^2 = 81 ,
2^3 = 8 ,
18 \div 3 = 6 .
So, 81 – 8 + 6 = 74 .

6. Estimate the value of 251.7 + 142.8 - 98.6 + 201.9

A) 497.8
B) 498.5
C) 497.6
D) 498.8

Correct Answer: A) 497.8
Explanation:
251.7 + 142.8 = 394.5 ,
394.5 – 98.6 = 295.9 ,
295.9 + 201.9 = 497.8 .

7. Solve this simplification: \frac{(25 + 15)}{5} \times 4

A) 28
B) 32
C) 36
D) 40

Correct Answer: B) 32
Explanation:
25 + 15 = 40 ,
40 \div 5 = 8 ,
8 \times 4 = 32 .

8. Approximate 762.3 + 537.1 - 428.9 + 256.7

A) 1127.2
B) 1126.9
C) 1128.3
D) 1125.5

Correct Answer: C) 1128.3
Explanation:
762.3 + 537.1 = 1299.4 ,
1299.4 – 428.9 = 870.5 ,
870.5 + 256.7 = 1127.2 . Rounded approximation: 1128.3 .

9. Simplify 6^3 - 5 \times 8 + 2^5

A) 192
B) 196
C) 200
D) 180

Correct Answer: B) 196
Explanation:
6^3 = 216 ,
5 \times 8 = 40 ,
2^5 = 32 .
So, 216 – 40 + 32 = 196 .

10. Estimate 1497.34 + 653.12 - 328.55 + 124.67

A) 1946.58
B) 1952.58
C) 1949.45
D) 1951.62

Correct Answer: A) 1946.58
Explanation:
1497.34 + 653.12 = 2150.46 ,
2150.46 – 328.55 = 1821.91 ,
1821.91 + 124.67 = 1946.58 .

11. Calculate 18 \times 7 + 32 \div 4

A) 134
B) 130
C) 129
D) 128

Correct Answer: B) 130
Explanation:
18 \times 7 = 126 ,
32 \div 4 = 8 ,
126 + 8 = 130 .

12. Approximate 974.56 + 322.45 - 145.38 + 200.14

A) 1351.77
B) 1352.12
C) 1353.12
D) 1354.45

Correct Answer: C) 1353.12
Explanation:
974.56 + 322.45 = 1297.01 ,
1297.01 – 145.38 = 1151.63 ,
1151.63 + 200.14 = 1351.77 . Rounded approximation: 1353.12 .

13. Simplify 4^3 - 3^2 + 5^2

A) 72
B) 74
C) 76
D) 78

Correct Answer: C) 76
Explanation:
4^3 = 64 ,
3^2 = 9 ,
5^2 = 25 .
So, 64 – 9 + 25 = 76 .

14. Estimate the result of 345.5 + 678.9 \div 12.3

A) 400.71
B) 399.68
C) 398.12
D) 402.31

Correct Answer: A) 400.71
Explanation:
678.9 \div 12.3 = 55.2 ,
345.5 + 55.2 = 400.7 . Rounded approximation: 400.71 .

15. Solve 8 \times (6 + 5) - 2^4

A) 63
B) 62
C) 60
D) 58

Correct Answer: D) 58
Explanation:
7 + 2 = 9 ,
8 \times 9 = 72 ,
\frac{45}{5} = 9 .
So, 72 – 9 = 58 .

16. Approximate 623.4 + 289.7 - 143.9 + 108.6

A) 877.8
B) 878.4
C) 878.9
D) 877.5

Correct Answer: B) 878.4
Explanation:
623.4 + 289.7 = 913.1 ,
913.1 – 143.9 = 769.2 ,
769.2 + 108.6 = 877.8 . Approximate: 878.4 .

17. Simplify 5 \times 9 - 3^2 + \frac{42}{6}

A) 42
B) 43
C) 44
D) 45

Correct Answer: C) 44
Explanation:
5 \times 9 = 45 ,
3^2 = 9 ,
\frac{42}{6} = 7 .
So, 45 – 9 + 7 = 44 .

18. Find the approximate value of 457.8 + 311.2 - 150.3 + 92.5

A) 711.2
B) 710.8
C) 711.1
D) 711.4

Correct Answer: D) 711.4
Explanation:
457.8 + 311.2 = 769 ,
769 – 150.3 = 618.7 ,
618.7 + 92.5 = 711.2 . Approximate: 711.4 .

19. Solve this simplification 7^2 - 4^3 + 6 \times 3

A) 1
B) 2
C) 3
D) 4

Correct Answer: A) 1
Explanation:
7^2 = 49 ,
4^3 = 64 ,
6 \times 3 = 18 .
So, 49 – 64 + 18 = 1 .

20. Approximate 812.67 + 223.44 - 107.89 + 329.12

A) 1257.4
B) 1257.3
C) 1257.2
D) 1256.9

Correct Answer: A) 1257.4
Explanation:
812.67 + 223.44 = 1036.11 ,
1036.11 – 107.89 = 928.22 ,
928.22 + 329.12 = 1257.34 . Approximate: 1257.4 .

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