exam
Maths Puzzle
Numerical Ability
AT 7 a.m. the temperature was -15 degrees F. By 1 p.m. the temp. increased by 18 degrees F. What was the temp. at 1 p.m.?
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Please help me with this problem
SOlve by substitution:
b = -2c + 4
2c + b = 4
what is 25% of 3 hours and 20 minutes?