A mother is planning a birthday party for her son and she wants to give each child 15 balloons. There are 50 balloons in each packet she purchases. How many packets of balloons does she need to purchase for a party of 16 children?
5
17
6
50
Correct Answer : A
The number of packets of a balloon to purchase is evaluated as follows
\(16\ children\ast\frac{15 balloons}{1 child}\ast\frac{1 packet}{50 balloons}=\frac{24}{5}=4.8 packets\)
Approximating 4.8 to 5, the mother will have to buy 5 packets of balloons.
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Related Questions
Correct Answer is A
Explanation
Remaining fraction =\(1-\frac{1}{3}=\frac{3}{3}-\frac{1}{3}=\frac{2}{3}\)
Number of remaining books
\(\frac{2}{3}\ast67982=\frac{135964}{3}\ books\)
Number of fiction books
\(\frac{75}{100}\ast\frac{135964}{3}\ books=33\ 991\ books\)
Number of non-fiction books is 25% of the remaining books
\(\frac{25}{100}\ast\frac{135964}{3}\ books=11330.333\ books\)
Thus, the number of non-fictional books is 11330.
Correct Answer is ["40.6"]
Explanation
\(20.3\ \ast\ 2=40.6\)
Correct Answer is A
Explanation
\(\frac{0.9}{3}=0.3\)
Correct Answer is D
Explanation
The ratio 15:1000=X:100 can be written in proportion as:
\(\frac{15}{1000}=\frac{X}{100}\)
The value of X is determined by cross-products
\(15\ast100=1000X\)
\(1500=1000X\)
Divide both sides by 1000
\(\frac{1500}{1000}=\frac{1000X}{1000}\)
\(1.5=X \)
Thus, the value of X is 1.5
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