Advertisements
Advertisements
प्रश्न
The sides of a triangle are in the ratio 7 : 5 : 3 and its perimeter is 30 cm. Find the lengths of sides.
Advertisements
उत्तर
Perimeter of a triangle = 30 cm.
Ratio among sides = 7 : 5 : 3
Sum of ratios 7 + 5 + 3 = 15
Length of the first side = `30 xx (7)/(15)` = 14cm
Length of the second side = `30 xx (5)/(15)` = 10cm
Length of the third side = `30 xx (3)/(15)` = 6cm
∴ Sides are 14cm, 10cm, 6cm.
APPEARS IN
संबंधित प्रश्न
Find the sub-duplicate ratio of the following :
x6 : y4
₹ 300 is divided between A and B in such a way that A gets half of B. Find:
- the ratio between the shares of A and B.
- the share of A and the share of B.
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.
In a class, one out of every 5 students pass. If there are 225 students in all the sections of a class, find how many pass?
If `(2"y"+5"x")/(3"y"-5"x")=2 1/2`, find x, if y = 70
Arrange the following ratios in ascending order of magnitude: 2 : 3, 17 : 21, 11 : 14 and 5 : 7
Find the ratio of:
35 minutes to an hour
Show that 48, 60, 75 are in continued proportion.
If a : b = 9 : 10, find the value of `(2a^2 - 3b^2)/(2a^2 + 3b^2)`
Thirumagal's mother wears a bracelet made of 35 red beads and 30 blue beads. Thirumagal wants to make smaller bracelets using the same two coloured beads in the same ratio. In how many different ways can she make the bracelets?
