A student goes to his school from his house at a speed 3 km/hr and returns at a speed of 2 km/hr. If he takes 5 hours in going and coming the distance between his house and school is
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If x, 2x + 2, 3x + 3 are in G.P, then 11x, 22x + 22, 33x+33 form |
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The sum of three numbers is 264 if the first number be twice the second and third number be one-third of the first, then the second number is |
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If $1^{2} +2^{2} + 3^{2} + .....+ 10^{2}$ = 385 then $2^{2} +4^{2} + 6^{2} + .....+ 20^{2}$ is |
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In the ratio x% of y to y% ofx, its fraction value is equals to |
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Arun is now half as old as his father. Twelve years ago the fathers age was three times as old as Arun. Now the present age of his fathers age is |
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If a, b, c are in A.P., then $3^{a}, 3^{b}, 3^{c}$ are in |
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If -1 < r < 1, then the sum of infinite number of a geometric series is |
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The angle in a semi circle is a ---- - - - |
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If$\dfrac{a}{3}$=$\dfrac{b}{4}$=$\dfrac{c}{7}$; then $\dfrac{a+b+c}{c}$ is |
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Which is biggest ratio? |
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