Question
Which one of the following pairs is not correctly
matched?Solution
• An Ammeter is a device used to measure electric current, not electrical power. • It measures the amount of electric current flowing through a circuit and displays it usually in amperes (A). • Thus, option (d) is incorrectly matched. • The other options are correctly matched: o Odometer measures the distance traveled by a vehicle. o Ondometer measures the frequency of electromagnetic waves. o Audiometer measures the intensity or sensitivity of sound (especially for hearing tests). Thus, the correct answer is (d).
Find the LCM of 25/14, 15/28, 30/21
The least number which when divided by 5, 10, 12 and 15 leave zero remainder in each case and when divided by 18 leaves a remainder of 6 is:
The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 isÂ
The LCM and the HCF of the numbers 30 and 45 are in the ratio:
Find the greatest number that will divide 115, 149 and 183 leaving remainders 3, 5, 7 respectively.
The ratio of two numbers is 6:14 and their LCM is 126. The numbers are:
The least number which when divided by 4, 6, 10 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 8 is:
If the sum of 2 numbers is 185, their LCM is 1700 and HCF is 5. Then the difference between 2 numbers is:
The sum and difference of the Least Common Multiple (L.C.M) and Highest Common Factor (H.C.F) of two numbers are 216 and 184, respectively. One of the ...
