MathGrit
ProblemsTechniquesPricing
Sign inGet started
Back to problems

Test scoring incorrect answers count

1000BeginnerSystems Of EquationsAlgebra

Mathematica competitions in Croatia

On a math test there are $40$ problems. For each correct answer one gets $15$ points, and for each incorrect answer $-4$ points. Dinko has solved all the problems, but he made some mistakes. How many incorrect answers he had, if he scored $353$ points in total?
0 students attempted0% solvedRating 1000

Related practice paths

Olympiad-Style PracticeDeep contest practice for proof-style problem solving.How to Qualify for AIMEScore goals, contest choice, and prep habits for AIME hopefuls.How to Review Missed AMC ProblemsTurn missed problems into a repeatable improvement loop.

Ready to check your answer?

Create an account to submit answers, save history, and track your rating.

Progressive Hints5

Unlock hints one at a time — each reveals a little more without spoiling the solution.

Step-by-Step Solutions1

Multiple solution approaches with detailed walkthroughs, unlocked after you solve the problem.

AI-Powered Grading

Instant feedback on your answer — handles fractions, decimals, and equivalent forms.

Curated problem bank

Supported tracks for AMC, AIME, MATHCOUNTS, and olympiad-style training, plus global problem sources like UKMT, Euclid, and Kangaroo.