Basic-Numeracy
Number System: Divisibility, HCF–LCM and Remainders
CSAT number system with worked examples — divisibility rules, counting factors, HCF and LCM applications, …
Time, Speed, Distance and Work
CSAT time, speed and work with worked examples — unit conversion, average and relative speed, trains, boats …
Percentages for CSAT
CSAT percentages made fast — the fraction–percentage table, percentage change, successive changes, percentage …
Ratio, Proportion and Averages for CSAT
CSAT ratio and averages with worked examples — combining ratios, ages, mixtures and alligation, partnership, …