Tiap pagi diisi
(Haflah Announcement, Madrasah Irsyad az Zuhri)
There are 836 youths in a carnival. 7/10 of the males and 7/8 of the females took a bus to the carnival. The number of males who did not take the bus is twice the number of females who did not take the bus. How many females did not take the bus?
Jane was thrice as old as Amy 4 years ago. 6 years later, the ratio of Jane's age to Amy's age will be 7:4. Find the ratio of Jane's age to Amy's age 2 years later.
The figure below shows two identical right-angled triangles overlapping each other. Find the area of the blue region.
The two triangles are identical,
The yellow region is overlapping and same in area or size.
Therefore, the area of the blue region is equal to the white region.
The area of the blue region = 9 × 6 + ½ × 3 × 6 = 63 cm2
Sarah had some money in the piggy bank. On Monday, she took 2/5 of the money to buy a present. She had $78 left and she put it back into the piggy bank. On Tuesday, she took 3/8 of the money to buy some story books. She had $28.80 left and she put it back into the piggy bank. After that, she found that there was $246.30 in the piggy bank. How much money did she have in the piggy bank at first?
Answer:
