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A company received two shipments of ball bearings. In the first shipment, 1 percent of the ball bearings were defective. In the second shipment, which was twice as large as the first, 4.5 percent of the ball bearings were defective. If the company received a total of 100 defective ball bearings, how many ball bearings were in the first shipment?

 

(a)

990

(b)

1000

(c)

2000

(d)

3000



Question ID - 56963 | SaraNextGen Top Answer

A company received two shipments of ball bearings. In the first shipment, 1 percent of the ball bearings were defective. In the second shipment, which was twice as large as the first, 4.5 percent of the ball bearings were defective. If the company received a total of 100 defective ball bearings, how many ball bearings were in the first shipment?

 

(a)

990

(b)

1000

(c)

2000

(d)

3000

1 Answer
127 votes
Answer Key / Explanation : (b) -

Let the total number of ball bearings in the first shipment be

 Then, total number of ball bearings in the second shipment be

1% of  4.5% of

127 votes


127