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A geostationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation. Communications satellites and weather satellites are often given geostationary orbits, so that the satellite antennas that communicate with them do not have to move to track them, but can be pointed permanently at the position in the sky where they stay.
What is the largest common divisor of the numbers 1170, 2340, and 3510?
The ratio between two numbers is 2:3 and the sum of their squares is 2197. The numbers are:
If the 5-digit number 676pq is divisible by 3, 7 and 11, then what is the value of (6p – 7q)?
The divisor is 35 times the quotient and 7 times the remainder. If the quotient is 18, the dividend is :
Find the number of factors of 80?
The sum of four consecutive counting numbers is 154. Find the smallest number?
How many terms are there in the geometric progression 4, 20, 100...... 62500?
When a number is increased by 20% then the number obtained is 72 less than thrice the original number. Find the original number.
A school is organizing a trip and needs transportation for 180 students. Each bus can carry 45 students. If the school rents 4 buses and 2 vans, with ea...