Question

What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ?
A) 8 hrs
B) 7 hrs 15 min
C) 7 hrs 30 min
D) 8 hrs 20 min

Answer 1

Q:

What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ?

A) 8 hrs
B) 7 hrs 15 min
C) 7 hrs 30 min
D) 8 hrs 20 min

Answer:   C) 7 hrs 30 min 

Read Description:

Total number of cards = 1500
total columns = 45
so, total punches=1500 x 45 = 67500
for 1 hour if we make 9000 punches, 
we require 67500/9000 = 7.5

so 7hours:30mins.

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer...

⤵️⤵️⤵️⤵️⤵️⤵️⤵️

Total number of cards = 1500

total columns = 45

so, total punches=1500 x 45 = 67500

for 1 hour if we make 9000 punches, 

we require 67500/9000 = 7.5

so, 7hours:30mins.
✔✔✔