Explanation

56-19=37

Explanation

47 × 47 = 2209

Clearly, 6 should be added to 2203 to get a perfect square.

Explanation

To find the sum, we add the numbers together:

11

33

55

77

99

Starting from the rightmost digit (ones place):

1 + 3 + 5 + 7 + 9 = 25

Write down 5 and carry over 2 to the next place.

Moving to the next digit (tens place):

1 + 3 + 5 + 7 + 9 = 25

Add the carry-over 2: 25 + 2 = 27

Combine the digits: 275

So, 11 + 33 + 55 + 77 + 99 = 275

Explanation

16 of 40 can be written as:

1640

Multiply both numerator & denominator by 100

1640 × 100100 = 40100 = 40%

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If you are using a calculator, simply enter:

16÷40×100 = 40%

Explanation

قیمت خرید 250 ہے جبکہ قیمت فروخت 500 ہے۔

منافع ہوا 250

100*250/250 = 100%

Explanation

x + 5x + 10x = 640

16x = 640

x = 40

∴ no. of notes = 40×3=120

Explanation

1163​=1619​  Its reciprocal=1916​
∴ Required difference=1619​−1916​
=304361−256​=304105​

Explanation

Value of x is 100

Because 6250/10=625.

Explanation

15+5+0+12+8/5

=40/5

=8

Explanation

If both pipes are opened for 3 minutes then water taken out=(12l*3)+(40/3l*3)=36l+40l=76l

Water left in tank=240l-76l=164l