## Bharat Gupta is teaching live on Unacademy Plus

RATIO AND PROPORTION Class 16 Variation part - 2)

If x varies as y directly and as z inversely and x14 when y 10, find z when x a-14/10 49 and y45. b, 10 C. 10/14 d. can't be determined

directly and as z inversely and x 14 when y 10 If x varies as y when x 49 and y = 45. a. 14/10 b. 10 find z c. 10/14 d. can't be determined ,

Is a varies as b, then a + b2 varies as d. b2

Is a varies as b, then a2 +b2 varies as a. a +b b. a b c. a2 d. b2 2 2 2.

A precious stone worth Rs 8,112 is broken into three parts having the ratio of 2 5 6. If the price varies as the square of the weight then the loss incurred. a. Rs 4750 b. Rs 5000 c. Rs 4992 d. Rs 4880

A precious stone worth Rs 8,112 is broken into three parts having the ratio of 2: 5:6.If the price varies as the square of the weight then the loss incurred. a. Rs 4750 b. Rs 5000 C. Rs 4992 d. Rs 4880 3120

The distance of the horizon at the sea varies as the square root of the height of the eye above sea level. When the distance is 14.4 km, the height of the eye is 18 meters. Find, in kilometres, the distance when the height of the eye is 8 meters. . 4.8 km b.7.2 km c.9.6 km d.12 km

The distance of height of the eye above sea level. When the distance is 14.4 km, the height of the eye is 18 meters. Find, in kilometres, the distance when the height of the eye is 8 meters. a. 4.8 km b. 7.2 km c. 9.6 km d. 12 km the horizon at the sea varies as the square root of the

The weight of a circular disc varies as the square of the radius when the thickness remains the same, it also varies as the thickness when the radius remains the same. Two discs have their thickness in the ratio of 9: 8, the ratio of the radii if the weight of the first is twice that of the second is a. 4:3 b. 5 2 c. 21 d. 1:2