28. A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job (a) 48 (b) 34 2/7 (c) 44 (d) 453 6139
the squre of 225?3 2988
how to calculate three digit number multiplication? send me any shortcut? 235*2352 2821
how to calculate three digit number multiplication? send me any shortcut? 235*2351 2672
In an examination, 35% of the students passed and 455 failed. How many students appeared for the examination?10 42176
The fresh fruit contain 90% water and dryfruit contain 20% water if 20kgs of fruits are there.then find the quantity of dryfruits1 2371
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