Question
Alok and Kajal started a business by investing Rs. 'X'
and Rs. (X + 700), respectively. 20 months later, Kajal withdrew his entire investment. At the end of 24 months, the total profit from the business was Rs. 8,200, out of which profit share of Kajal was Rs. 1,800 more than that of Alok. Find the value of 'X'.Solution
Number of months for which Alok invested in the business = 20 + 4 = 24 months Let the profit share of Alok out of the total profit of Rs. 8200 = Rs. 'Y' Then, profit share of Kajal out of the total profit of Rs. 8200 = Rs. (Y + 1800) So, Y + Y + 1800 = 8200 Or, Y = (8200 - 1800) ÷ 2 = 3200 So, profit shares of Alok and Kajal are Rs. 3,200 and Rs. 5,000, respectively. So, respective ratio of profit shares of Alok and Kajal = (X × 24):{(X + 700) × 20} = 24X:(20X + 14000) = 3200:5000 = 16:25 So, 24X × 25 = (20X + 14000) × 16 Or, 600X = 320X + 224000 Or, X = 224000 ÷ 280 = 800
A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is 4 hrs 40 min, the distance is
‘A’ and ‘B’ started moving towards each other at same time with a speed of 12 km/hr and 6 km/hr, respectively. If the distance covered by ‘A�...
A man running with the speed of 72 km/hr covers a certain distance in ‘x’ hours. If the same distance can be travelled with a speed of 80 km/h in (x...
- Maya has to go to the airport. If she drives at 36 km/h, she arrives 1.5 hours late. If she drives at 60 km/h, she reaches 45 minutes early. What is the di...
A thief steal a car at 2:30 pm and drive at a speed of 80 km/hr. Police came to know about thief at 3:30 pm and start chasing him with the speed of 90 k...
A motor car travels a distance of 180 km at the speed of 20 kmph. If it covers the next 100 km of its journey at the speed of 20 kmph and last 40 km of ...
'A' starts a journey and covers the first half of the total distance at a speed of 15 km/hr. Then, he travels half of the remaining distance at 5 km/hr ...
A car travels a distance of200 km at the speed of 50 kmph. If it covers the ne×t 160 km of its journey at the speed of 80 kmph and last 80 km of i...
A train whose speed is 40 m/s crosses a bridge in 20 seconds. Another train which is 80m shorter than the first train crosses the same bridge at the spe...
A motor-cycle covers 100 km with a speed of 40 km/hr. find the speed of the motor-cycle for the next 100 km journey so that the average speed of the who...