Advertisements
Advertisements
प्रश्न
A car travels 90 km in 3 hours with constant speed. It will travel 140 km in 5 hours at the same speed
पर्याय
True
False
Advertisements
उत्तर
False
Explanation;
Hint: 1 hour the car travels = `90/3` = 30 km
In 5 hours the car travels = 30 × 5 = 150 km
APPEARS IN
संबंधित प्रश्न
Find the third proportional to `x/y + y/x` and `sqrt(x^2 + y^2)`
Given four quantities p, q, r and s are in proportion, show that
q2(p - r) : rs (q - s) =(p2- q2- pq): ( r2-s2-rs).
Verify the following:
91 : 104 : : 119 : 136
If 9, x, x 49 are in proportion, find the value of x.
If `a/c = c/d = e/f` prove that: `(a^3 + c^3)^2/(b^3 + d^3)^2 = e^6/f^6`
If a, b, c are in continued proportion, prove that: abc(a + b + c)3 = (ab + bc + ca)3
If a, b, c, d are in continued proportion, prove that: (a2 – b2) (c2 – d2) = (b2 – c2)2
If q is the mean proportional between p and r, prove that: p3 – 3q2 + r2 = `q^4(1/p^2 - 3/q^2 + 1/r^2)`
Find the missing number in the box in the proportion:
`square/18 = 2/9`
Find the missing number in the box in the proportion:
`8/square = 3.2/4`
