Question

the least perfect square number which is exactly divisible by 12,15 and 18
a. 600
b. 120
c. 900
d. 700​

Answer 1

Answer:

the least perfect square number which is exactly divisible by 12,15&18 is 900

Answer 2

Answer:

900

Step-by-step explanation:

SOLN

THINK ALWAYS

THEY ASKED LEAST SQUARE

AND THE NUMBERS ARE 600,120,900,700

HERE ONLY 900 IS A PERFECT SQUARE NUMBER WHICH IS 30^2

AND THE OTHER ARE NOT PERFECT SQUARE

SO ANSWER IS 900

IF YOU WANT HOW TO SOLVE IT I WILL

FIRST FIND LCM OF THE NUMBER

180

180=3^2*2^2*5

TO MAKE PERFECT SQUARE WE NEED ONE MORE 5

SO 3^2*2^2*5^2=180*5=900=30^2