SSC CHSL 2023 PYQ — Question 55

SSC CHSL - 07 Aug 2023 - Shift 3 • Quantitative Aptitude • Q55

In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. When Mr. Smith went to a restaurant one day, he left his coat near the door. There was (1)________ in the pockets when he left it, so he was very surprised when he took his coat after his meal and found the (2)________ full of jewellery. There was a waiter near the door, so Mr. Smith said to him, “Somebody has made a mistake. He has put some (3)________ in my coat. Take it, and when he comes back, give it to him.” The waiter took it and went away. Suddenly another man came in with a (4)________ just like Mr. Smith’s. “I am sorry,” said the man , “I made a mistake. I took your coat and you have got mine. Please give me my coat and jewellery.” Mr. Smith answered.” I gave the jewellery to the waiter. He will give it to you.” Mr. Smith called the manager of the restaurant; but the manager said, “We have (5)________ waiters here. We have only waitresses.” “You gave the jewellery to a thief!” shouted the other man. “I shall send for the police!” Mr. Smith paid the man a lot of money for the jewellery.

Rajendra is working as a delivery boy in a multinational company. The company is paying him Rs90 per delivery. In a fortnight comprising 15 consecutive working days, his average earnings per day was Rs540. If his average earnings of the first 7 days was Rs519 per day and that of the last 7 days was Rs546 per day, then what was his earning on the 8th day of the fortnight?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. Rs.645.

Sum of observations = Average of observations × Number of observations

According to the given question,

Total earnings of Rajendra for 15 days = 15 × 540 = 8100

Total earnings of first 7 days = 7 × 519 = 3633

Total earnings of last 7 days = 7 × 546 = 3822

Earnings of 8th day = 8100 - (3633 + 3822)

⇒ 8100 - 7455 = 645