p:q= 5:3, q:r = 7:4 ആയാൽ p:q:r എത്ര?
A35:15:13
B4:7:9
C35:21:12
D1:2:3
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8 രൂപയിൽ നിന്ന് 80 പൈസയിലേക്കുള്ള നിരക്ക് എത്രയാണ്?
Several students have taken an exam. There was an error in the answer key which affected the marks of 48 students, and their average marks reduced from 78 to 66. The average of remaining students increased by 3.5 marks. This resulted the reduction of the average of all students by 4.5 marks. The number of students that attended the exam is:
24 : 60 :: 120 : ?
5x + 6y : 8x + 5y = 8 : 9 ആണെങ്കിൽ x : y യുടെ വില എത്രയാണ് ?
In a school, the ratio of boys and girls is 4:5. When 100 girls leave the school, the ratio becomes 6:7. How many boys are there in the school?