In the number 15!/100, which digit will be in the unit's place?

If x + 1/√x = 6 then x² + 1/x² is equal to :-

1! + 2! + 3! + 4! + ......... + 50! Find the unit digit of?

If m + n = 1, then what will be the value of m³ + n³ + 3mn?

If a + b + c = 2, a² + b² + c² = 26 then the value of a³ + b³ + c³ – 3abc is

Sound travels 330 meters in one second. When the sound is heard 10 seconds after the lightning flashes, then at what distance will the cloud be?

The average of 10 numbers is 14. If each number is multiplied by 6 then what will be the new average?

If the 8 digit number 789x531y is divisible by 72, then the value of (5x - 3y) will be?