exam
Maths Puzzle
Numerical Ability
Nancy can paint a house twice as fast as Terry can. They year they worked together it took them 7 days. How long would it take each to paint the house alone?
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Please help me solve this. Thank you.
Multiply
-3a^2b over 35a^5 times 14a^3b^2 over -9b^4
multiply and simplify:
x^5y^3/x^2+13x+30 multiplication sign x^2+2x-3/x^7y^2
Thanks soooo much !