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SG chevron_right Primary 5 chevron_right Number and Algebra

Please help.  Thanks

SG chevron_right Primary 6 chevron_right Number and Algebra

Tap A and Tap B can fill up an empty water tank in 4hrs.<div>Tap B and Tap C can fill up the same tank in 6hrs.</div><div>Tap A and Tap C can fill up the same tank in 3hrs.</div><div>How many hours will it take to fill up the empty water tank if all the taps are turn on at the same time?</div>

SG chevron_right Primary 5 chevron_right Fractions

Please help. TIA!

SG chevron_right Primary 2 chevron_right Number and Algebra