With average speed of 40 km/h, a train reaches its destination in time. If it goes with an average speed of 35 km/h, it is late by 15 min. The total journey is

• 30 km

• 40 km

• 70 km

• 80 km

A man makes a profit of 20% on the sale by selling 20 articles for ₹ 1, the number of articles he bought by ₹ 1 is

• 20

• 24

• 25

• 30

113.

The number of seats in an auditorium is increased by 25%. The price of a ticket is also increased by 12%. Then, the increase in revenue collection will be

• 40%

• 35%

• 45%

• 48%

A ship is moving at a speed of 30 km/h. To know the depth of the ocean beneath it. It sends a radio wave which travels at a speed 200 m/s. The ship receives the signal after it has moved 500 m. The depth of the ocean is

• √143/2 km

• 12 km

• 6 km

• 8 km

A person takes a loan of ₹ 10000 partly from a bank at 8% per annum and remaining from another bank at 10% per annum. He pays a total interest of ₹ 950 per annum. Amount of loan taken from the first bank (in ₹) is

• 2500

• 5200

• 2050

• 5020

If  then the value of  will be

• 535

• 1030

• 790

• 970

If  then the value of (2x⁴ - 8x³ - 5x² + 26x - 28) is

• 

• 0

• 

• 

If the distance between two points (0, -5) and (x, 0) is 13 unit, then x equal to

• 10

• 

• 12

• 

If 4x = 18y,  then the value of  is

If  then the value of  is

• 70

• 50

• 110

• 55