Question
Speed of a car and a bus is 24 km/h and 14 km/h,
respectively. If the time taken by the car to cover a distance of β8xβ km is 1 hour less than time taken by the bus to cover a distance of β5xβ km, then find the value of β8xβSolution
According to the question, (5x/14) β (8x/24) = 1 Or, (5x Γ 12 β 8x Γ 7) Γ· 168 = 1 Or, (60x β 56x) Γ· 168 = 1 So, x = 42 Required value = 8 Γ 42 = 336
In a class, the ratio of number of boys to that of girls was 7:6 and total number of boys was 1960. When some more boys joined, the ratio became 8:7. Fi...
Ratio between marked price of article A to article B is 5:6. Shopkeeper allowed d% discount on article βAβ and (d + 16)% discount on article βBβ...
- Number of girls in class βPβ is 60% of number of boys in that class. Class βQβ has 20% fewer boys than in class βPβ and 40% more total students...
The ratio of number of balls in bags A & B is 3:4. Seven Balls are taken from bag B and are dropped in bag A, number of balls are equal in each bag now...
A square and a regular hexagon are drawn such that all the vertices of the square and the hexagon are on circle of radius r cm. The ratio of area of the...
Ina regiment the ratio between the number of officers to soldiers was 3 : 31 before battle. In a battle 6 officers and 22 soldiers were killed and the r...
Mr Rohila left his entire property to his wife, daughter and son and the cook. His son and daughter got half the estate, sharing in the ratio of 3:2. Hi...
The total number of phones to the total number of laptops in Stores A and B is in the ratio 120:13. Additionally, the number of laptops in Store A to t...The radii of two solid right circular cylinders are 6 cm and 4 cm respectively and their heights are (h+1) cm and (2h+1) cm respectively. If the areas o...
The ratio of the length of the parallel sides of a trapezium is 3:2. The shortest distance between them is 15cm. If the area of the trapezium is 450cm