Question
A man running with the speed of 55 km/hr covers a
certain distance in βxβ hours. If the same distance can be travelled with a speed of 60 km/h in (x - 2) hours, then find the value of βxβ.Solution
According to question, 55x = 60(x - 2) 60x β 55x = 120 5x = 120 x = 24
- 25, 32, 47, 77, 126, 198 
- Find the wrong number in the given number series. - 24, 120, 721, 5040, 40320, 362880 
- Find the wrong number in the given number series. 
 630, 180, 60, 24, 12, 8, 5
- 12, 220, 322, 376, 402, 415 
- 1137, 1138, 1142, 1151, 1185, 1310Β 
- 32, 46, 88, 158, 256, 380 
- 186, 179, 170, 162, 146, 131, 114 
- Find the wrong number in the given number series. - 10, 17, 26, 39, 59, 85 
- 12, 28, 64, 128, 228, 379 
- Find the wrong number in given number series. - 2835, 3460, 3335, 3360, 3354, 3356