Two boats A and B start towards each other from two places, 660 km apart. Speed of the boat A and B in still water are 30 km/h and 25 km/h respectively. If A and B proceeds against and with the stream, respectively then after how much time will they meet?
Let the speed of stream be ‘x’ km/h and they meet after‘t’ hours According to question, Distance covered while going upstream + Distance covered while going downstream = Total distance covered. (30 - x)t + (25 + x)t = 660 30t + 25t = 660 55t = 660 t = 12 hours
LCM of two numbers is 64 times of their HCF. Sum of the HCF and LCM is 975. If the first number is 960. Find the other number?
Find the greatest number of 4 digits divisible by 15, 25, 40 and 75.
Sum of the two numbers is 42. LCM and HCF of that two number is 72 and 6 respectively. Find the sum of reciprocals of the numbers?
From a point on circular track 20 km long P, Q and R started running in the same direction at the same time with speed of 4 km per hour, 2 km per hour, ...
What are the Highest Common Factor and Lowest Common Multiple of 6, 72, 120?
The ratio of two number is 6 : 5 and their HCF is 15. So find and their LCM?
The product of two numbers is 504 and their HCF is 6. Total number of such pairs of numbers is?
The HCF of two numbers 110 and 1980 is:
The HCF and LCM of the two numbers are 225 and 306 respectively. When the first number is divided by 3, the quotient is 15. The other number is.
LCM of two numbers is 10 times their HCF. The product of the numbers is 18000. What will be the maximum possible difference between the numbers?
