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$36. Are 8, 12, 20 and 30 in proportion?37. Find the mean proportion between a and c.38. The cost of 35 chairs is 1225. Find the number of chairs that can be purchased for 1400.39. In a party there were provisions for 125 men for 30 days. But 300 men attended the party.How long did the provisions last?40. What is the charge to carry 50 tonnes, if charge to carry 60 tonnes is 36000?41. How many lines can you draw passing through three collinear points ?42. What do you mean by concurrent lines?43. Construct a line segment whose length is thrice the length of the line segment AB=2.5 cm.44. How many degree are there in two straight angles?45. Find the supplement of 130°.46. Find the complement of 17º.please answer me fast⚡⚡please aek copy me answer likh ke de do full answer jldii please |
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