Question
The sum and difference of the L.C.M and H.C.F of two
numbers are 540 and 300. If one number is 60, find the other.Solution
ATQ,
Let the L.C.M and the H.C.F of the two numbers be 'a' and 'b' respectively
Then, (a + b) = 540
And (a - b) = 300
So, (a + b) + (a - b) = 540 + 300 = 840
Or, a = 840 ÷ 2 = 420
So, b = 540 - 420 = 120
The product of two numbers is equal to the product of their L.C.M and H.C.FSo, required number = (420 × 120) ÷ 60 = 840
How many persons who eat cake and momos but not pastry?
Two statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance...
If 54 [9] 3 and 108 [30] 5, then what is the value of Z in 19 [Z] 18?
242, 288, ? , 392, 450
If ‘+’ means ‘−‘, ‘−‘ means ‘×’, ‘÷’ means ‘+’, ‘×’ means ‘÷’, then what is the value of the following expressio...
What will come in place of ‘b’?
Select the word-pair in which the two words are related in the same way as are the two words in the following word-pair.
Butterflies : Lepidopterist
Which of the following boxes are placed in the lowermost shelf?
Odd one out
Point T is in which direction with respect to point P?
Relevant for Exams:
