Advertisements
Advertisements
Question
Find the fourth proportional of 4 hours 40 minutes, 1 hour 10 minutes and 16 hours.
Advertisements
Solution
Fourth proportional of 4 hours 40 minutes, 1 hour 10 minutes and 16 hours.
4 hours 40 minutes = 4 × 60 + 40
= 240 40 = 280
1 hour 10 minutes = 1 × 60 + 10
= 60 + 10 = 70 minutes
16 hours = 16 × 60 = 960 minutes
∴ Fourth proportional = `(70 xx 960)/280`
= 240 minutes = `240/60` = 4 hours
APPEARS IN
RELATED QUESTIONS
Convert the following ratio to a percentage.
2 : 3
If x : y = 4 : 7, find the value of (3x + 2y) : (5x + y).
Find duplicate ratio of `3sqrt(3) : 2sqrt(5)`
Is the ratio of 15 kg and 35 kg same as the ratio of 6 years and 14 years?
In winter, a school opens at 10 a.m. and closes at 3.30 p.m. If the lunch interval is of 30 minutes, find the ratio of lunch interval to total lime of the class periods.
Mr. Gupta divides Rs 81000 among his three children Ashok, Mohit, and Geeta in such a way that Ashok gets four times what Mohit gets and Mohit gets 2.5 times what Geeta gets. Find the share of each of them.
Find the reciprocal ratio of 4 : 7
In class X of a school, the ratio of the number of boys to that of the girls is 4 : 3. If there were 20 more boys and 12 less girls, then the ratio would have been 2 : 1, How many students were there in the class?
The earth rotates 360° about its axis in about 24 hours. By how much degree will it rotate in 2 hours?
In the following figure, find the ratio of the area of the shaded portion to that of the whole figure:
