Question

91. Namrata and Rabia had some conversation through
messages. Namrata has sent 'n messages in 1 hours
and Rabia has sent r messages in equal amount of time.
Which of the following represents the total number of
messages sent in 3 hours ?
(a) 6nr
(6) 6 (6n + r)
(c) 3 (n +r)
(d) Inr​

Answer 1

Answer:

(b) 6(6n+r)

Step-by-step explanation:

because no of msg sent in 1 hour = n

Rabia has sent no of msg in 1 hr= r

therefore after 3 hr the no of msg will be 6(6n+r). As 1 hour = 3600 sec