47 Airplane Travel A Lear jet airplane has 360 gallons of fu

47. Airplane Travel A Lear jet airplane has 360 gallons of fuel. The plane averages 4 miles per gallon. How far can the plane go?

47)
360 gallons
4 1/3 miles per gallon or 13/3 miles per gallon

The number of miles it can travel is :

360 gl * 13/3 miles/gl

360 * 13/3 miles

120 * 13

1560 miles

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51)
2/3 of them are under 25
Total 7998 students

So, no under 25 yrs of age is :
2/3 of 7998

2/3 * 7998

5332 ppl under 25 yrs of age

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49)
90 1/2 or 181/2 g of grated cheese

Total she makes 18 tarts for her 18 cousins

So, 181/2 * 18

1629 grams of grated cheese required