1. If a,b,c and d are consecutive integer such that a
1)a+4
2)2a+3
3)3a+2
4)3a+3
5)3a+4
ANS:5.
2. The measure of two angles of a parallegram differ by 52 degrees. The number of degrees in the smaller angles
a)38
b)52
c)64
d)76
e)128
AnS:c
3.A certain machine drills 30holes in 8 mins.At that constant rate,how many holes will 4r such machines drill in 1 and 1/3hours?
a)300
b)900
c)960
d)1200
e)2560
Ans :a
4. Three solid cubes of lead,each with edges 10 centimeters long,are melted together in a level,rectangular-shapes pan.The base of the pan has inside dimensions of 20 centimeters by 30 centimeters, and the pan is 15 centimeters deep.If the volume of the solids lead is approximately the same as the volume of the molted lead,approximately how many centimeters deep is the melted lead in the pan?
a)2.5
b)3
c)5
d)7.5
e)9
ANs:c