A person sold an article at a profit of 15% , if he sold it for rs.81 less , his loss would have been 12% , find the cost price of article.​

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is 11.2 (i know i’m late)

faster, im not sure why but i know it is faster