alleryEight packs hold 24 pencils each; 37 pencils are given away. How many remain?
- 155
- 229
- 179
- 168
Show answer and solution
Correct answer: A. 155
The packs hold 8 × 24 = 192 pencils, leaving 192 − 37 = 155.
RPF Constable Number System and Arithmetic Operations — practice questions — page 2
Explore 39 free Number System and Arithmetic Operations questions in RPF Constable Arithmetic. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–39 of 39.
Eight packs hold 24 pencils each; 37 pencils are given away. How many remain?Read the answer and worked solution →A hall has 156 seats, 29 empty. Then 18 people leave. How many remain?Read the answer and worked solution →Six tickets cost Rs 45 each. What change is due from Rs 500?Read the answer and worked solution →Match integer comparisonsRead the answer and worked solution →Which number is irrational?Read the answer and worked solution →What is the value of the digit 7 in 705084?Read the answer and worked solution →Find √196 + ∛343.Read the answer and worked solution →Find the least positive integer n such that 48n is a square and 18n is a cube.Read the answer and worked solution →Numbers: connect the ideasRead the answer and worked solution →
Worked practice questions
A hall has 156 seats, 29 empty. Then 18 people leave. How many remain?
- 109
- 127
- 138
- 145
Show answer and solution
Correct answer: A. 109
There are initially 156 − 29 = 127 people, and 127 − 18 = 109 remain.
Six tickets cost Rs 45 each. What change is due from Rs 500?
- Rs 230
- Rs 455
- Rs 270
- Rs 224
Show answer and solution
Correct answer: A. Rs 230
The tickets cost 6 × 45 = 270 rupees, so the change is 500 − 270 = 230 rupees.
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