exam
Maths Puzzle
Numerical Ability
rema is older than ken. the difference of their ages is 12 and the sum of their ages is 50. find the age of each
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exam Other Question
Solve for x
(1/7)^x=49
Do the subtraction.
(8x^3y^5+5xy-8y^3) - (4x^3y^5-8xy+4y^3)
My answer is 4x^3y^5 +13xy-12y^3