Self Maths Puzzle Numerical Ability Time and Work

If length of a body is increasing gradually 5cm in every 10 minute and if the length of the body is 10 m at 2 pm. then what will be its true length at 10 am morning?

Read Solution (Total 1)

for 10min - 5 cm
60 min - ? ===>30 cm
for 4 hours===>120 cms
at 2 pm it is 10m then at 10am it will be 880 cms
10 years agoHelpfull: Yes(0) No(0)

Self Other Question

A person leaves his home at a time when hour hand is between 4-5 and minute hand between 5-6, and when he returns after some time, the hands exchanged their positions. What time did he leave at? The sum of all four-digit numbers without repetition using 3, 4, 5, 7 is ... .
a. 1111 (3! + 4! + 5! + 7!)
b. 1111 (3 + 4 + 5 + 7)
c. 4444 (3 + 4 + 5 + 7)
d. 5555 (3! + 4! + 5! + 7!)
e. 1111 (3 + 4 + 5 + 7) (3!)
(need explanation pls)