100+ Simplification Questions and Answers for Competitive Exams - 1
Question: 1
In a classroom, if 6 students per bench are assigned to accommodate all students, one more bench will be required. However, if 7 students are accommodated per bench, there would be a space left for 5 students. What is the number of students in the class?
(A) 25
(B) 30
(C) 42
(D) 72
Ans: D
Let the number of benches in the class be x.
Then, 6 ( x + 1) = 7x – 5 ⇔ x = 11.
Hence, number of students in the class = 6 ( x + 1) = 6 x 12 = 72.
Question: 2
On simplification, 3034 – (1002 + 20.04) is equal to
(A) 2543
(B) 2984
(C) 2993
(D) 3029
Ans: B
Given expression = 3034 – $$({1002} / {2004} × 100)$$ = 3034 – 50 = 2984
Question: 3
100 x 10 – 100 + 2000 + 100 = ?
(A) 29
(B) 780
(C) 920
(D) 979
Ans: C
Given expression = 100 × 10 - 100 + 20= 1000 - 100 + 20 = 1020 - 100 = 920
Question: 4
7500 + (1250 ÷ 50) = ?
(A) 1275
(B) 6575
(C) 7525
(D) 7550
Ans: C
Given expression = 7500 + 25 = 7525.
Question: 5
Income of a company doubles after every one year. If the initial income was Rs. 4 lakhs, what would be the income after 5 years?
(A) Rs. 1.20 crores
(B) Rs. 1.24 crores
(C) Rs. 1.28 crores
(D) Rs. 2.56 crores
Ans: C
Income after 1 years = Rs. (4 × 21) lakhs.
Income after 2 years = Rs. (4 × 2 × 2) lakhs = Rs. (4 × 22) lakhs.
∴ Income after 5 years = Rs. (4 × 25) lakhs
= Rs. 128 lakhs = Rs. 1.28 crores.
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