Question
A field is 125m long and 15m wide. A tank 10m ×7.5m×6m
was dug in it and the earth thus dug out was spread equally on the remaining field. The level of the field thus raised is equal to which one of the followingSolution
Remaining field = Area of field -Area of tank =125×15 -10×7.5 =1875-75 = 1800 Volume of earth dug =10×7.5×6 =450cubic m By given condition – 1800×h = 450 h=450/1800=1/4m h =25cm
Conditions – (i) If the second element is a symbol and the last element is a number, then the second and last elements are to be coded as ©.
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