Total number of balls in the bag = 5 + 8 + 2 + 3 = 18
Number of red or blue balls in the bag = 8 + 2 = 10
Probability = 1018 = 59
Let x = 4.333…… (1)
Multiply both sides by 10
10x = 43.333…… (2)
Subtract (1) from (2)
9x = 39
x = 399
Cost of 12 clips = Rs. 60
Profit = 20%
Selling Price of clips = CP x 120100 = 60 x 120100 = Rs. 72
Selling Price of 12 clips = Rs. 72
Rs. 72 is the selling price of 12 clips.
Rs. 60 will be the selling price of 1272 x 60 = 10 clips
Let the digits at hundreds, tens and unit place be x, y and z respectively.
The number will be 100x+10y+z
On reversing the positions, number will be 100z+10y+x
On subtracting, we get ((100x+10y+z) – (100z+10y+x)) = 99x-99z = 99(x-z)
The largest number dividing the difference is 99.
Factors of 385 = 5 * 7 * 11
Factors of 1001 = 7 * 11 *13
First prime number = 5