The angle of depression of the foot of a building from the top of a tower 54√3 m away is 30°. How high is the tower?
=> tan A = height/base => tan 30 = height/54 √3 => 1/√3 = height/54 √3 => height = 54 √3/√3 => height = 54 m
A number is three times another number and their HCF is 8. What is the sum of the squares of the numbers?
Find the least number which when divided separately by 15, 20, 35 and 45 leaves 3 as remainder in each case?
A, B and C start running at the same time and at the same point in the same direction in a circular stadium. A completes a round in 720 seconds, B in 10...
The HCF of 4625 and 5445 is 225, their LCM is:
The greatest number of four digits which when divided by 10, 12, 14 leave remainders 5, 7, 9 respectively is:
The HCF of two numbers is 6 and their LCM is 84. If one of these numbers is 42, then the second number is:
HCF of 235, 237 and 239 is?
HCF of two numbers 65 and 104 can be expressed in the form of (40m – 107) whereas LCM of these two numbers can be expressed in the form of (60n – 20...