Ram asks the labour to dig a well upto a depth of 10 metre . Labour Charges Rs 150 for first metre and Rs .50 for each subsequent metres . As the labour was uneducated , he claims Rs.550 for the whole work . What shoulld be the actual amount to be paid to the labours . ?
A/Q
a= 150
d = 50
n = 10
tn = a + (n - 1)d
t10 = 150 + (10 - 1)50
t10 = 150 + 450
t10 = 600
the actual amount should be 600
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