Q.42.If { 1/2 (a - b) }2 + ab = p (a + b)2, then the value of p is
(A) p = 4
(B) P= 1/2
(C) P=1/4
(D) p = 2
Q.43.In a Δ ABC, DE || BC. D and E lie on AB and AC respectively. If AB = 7 cm and BD = 3cm, then find BC:DE
(A) 2:2
(B) 3:2
(C) 3.5 : 2
(D) 7:2
Q.44.
(A) 0
(B) 1
(C) 2
(D) -1
Q.45.If the angle of elevation of the top of a pillar from the ground level is raised from 30o to 60o, the length of the shadow of a pillar of height 50√3 will be decreased by
(A) 60 m
(B) 75 m
(C) 100 m
(D) 50 m
Q.46.Study the following pie-chart and answer the questions. Budget estimated by a family for their monthly expenses.
Total salary = ₹ 32000 per month
The budget estimated by the family on Clothing and Grocery together is
(A) Rs.8950
(B) Rs.8960
(C) Rs.8850
(D) Rs.8860
Q.47.Study the following pie-chart and answer the questions. Budget estimated by a family for their monthly expenses.
Total salary = ₹ 32000 per month
Due to sudden marriage, the family incurs miscellaneous expenditure of Rs. 3040 in total. Then the increase in the amount under this head from that budgeted is
(A) Rs.810
(B) Rs.1738
(C) Rs.234
(D) Rs.800
Q.48.Study the following pie-chart and answer the questions. Budget estimated by a family for their monthly expenses.
Total salary = ₹ 32000 per month
The difference in the amount estimated by the family on Electricity and Call bill is:
(A) Rs.4560
(B) Rs.4470
(C) Rs.4168
(D) Rs.4160
Q.49.Study the following pie-chart and answer the questions. Budget estimated by a family for their monthly expenses.
Total salary = ₹ 32000 per month
The family actually spent Rs.4672 on Grocery. Then the difference in the amount budgeted and spent on grocery is:
(A) Rs.1528
(B) Rs.1728
(C) Rs.1278
(D) Rs.1628
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