book Maths Puzzle Numerical Ability

3
[ 25 divide (2 - 3)].2

the top 3 is right above the 2

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book Other Question

Solve: 4 - 3(2p + 1) = 3p + 11 a freight train averaging 45 mi/hr and an express train averaging 70 mi/hr leave the station at the same time. how long will it take the express train to overtake the frt. train by