Solve any two questions step by step and the best answer will marked as brainliest and also will get ratings & thanks
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The answers are....
15) 25
17) ₹ 48000
18) 42
19) 35
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No need to solve question no. 16.
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15. Let the Smaller number be x
x + 2x + 15 = 90
that is smaller number + bigger number = 90
3x = 90 - 15 = 75
x = 25
smaller number is 25
18. Let the units digit be x
2x , x are the digits
2x + x = 6
3x = 6
x = 6 ÷ 3 = 2
19. Let the Units digit of the larger number be x
then the tens digit of the same be 8-x ( as they have given the sum is 8).
10 × ( 8 - x ) + x + 18 = 10x + ( 8+x )
( multiply by 10 because it is in tens place ).
= 80 - 10x + x + 18 = 10x + 8 - x
= 62 - 9x = 9x + 8
54 = 18x
x = 3
So , units digit is 3 and tens digit is 8-3 = 5
the larger number is 53
Then , smaller is 35
Answer : 35
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