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Questions(2176)

My age $3$ years hence multiplied by $3$ and from that subtracted $3$ times my age $3$ years ago will give you my exact age. What is my age?

view details (1 answer)$6$ blue $7$ green and $10$ white balls are arranged in rows such that every blue ball is between and green and white ball. Moreover a white ball and a green ball must not be next to each other. Number of such arrangements is

view details (1 answer)A tub contains a solution with $83\%$ water and $17\%$ spirit. $10$ liters of the solution is removed and replaced with water. The proportion of spirit is now $15\dfrac{1}{9}\%.$ How much does the tub hold?

view details (1 answer)If I set off for the market a distance of $11$ km at $10$ am and walk at an average speed of $3$ km/hr. At what time will I reach the market.

a) $12:30$ pm

b) $12:45$ pm

c) $1:40$ pm

d) $1:45$ pm

e) $2:40$ pm

view details (1 answer)a) $12:30$ pm

b) $12:45$ pm

c) $1:40$ pm

d) $1:45$ pm

e) $2:40$ pm

If $\$30,000$ to grow to $\$90,000$ over a ten years period, at what annual interest rate must it be invested, given that interest is compounded semi-annually?

view details (1 answer)$10$ men can reap a field in $20$ days$. 10$ men reaped the field for $10$ days and after $10$ days $10$ more men join them. When will the work be finished?

view details (1 answer)If height of the sphere and slant height of the cone are equal, then find the ratio of their radii, when they have equal surface areas.

view details (1 answer)